Dart-code: Dart DevTools exited with code 255 in vscode

[HasanAlqaisi]

When I try to open dart devTools in vscode i got a message error says ' Dart DevTools exited with code 255. Would you like to try reactivating DevTools?'
And when I click Reactivate devTools nothing happens.

Here's the log when I run Dart: Capture Logs.

!! PLEASE REVIEW THIS LOG FOR SENSITIVE INFORMATION BEFORE SHARING !!

Dart Code extension: 3.15.0
Flutter extension: 3.15.0 (activated)

App: Visual Studio Code
Version: 1.49.3
Platform: linux

Workspace type: Flutter
Analyzer type: DAS
Multi-root?: false

Dart SDK:
    Loc: /home/hasan/snap/flutter/common/flutter/bin/cache/dart-sdk
    Ver: 2.9.2
Flutter SDK:
    Loc: /home/hasan/snap/flutter/common/flutter
    Ver: 1.20.4

HTTP_PROXY: undefined
NO_PROXY: undefined

Sat Oct 03 2020 [21:53:22 GMT+0300 (Arabian Standard Time)] Log file started
[9:53:25 PM] [General] [Info] Starting debug session...
[9:53:25 PM] [General] [Info]     workspace: /home/hasan/FlutterProjects/playaround_with_widgets
[9:53:25 PM] [General] [Info]     program  : /home/hasan/FlutterProjects/playaround_with_widgets/lib/main.dart
[9:53:25 PM] [General] [Info] Using workspace as cwd: /home/hasan/FlutterProjects/playaround_with_widgets
[9:53:25 PM] [General] [Info] Detected launch project as Flutter
[9:53:25 PM] [General] [Info] Using Flutter debug adapter for this session
[9:53:25 PM] [FlutterDaemon] [Info] ==> [{"id":"11","method":"daemon.getSupportedPlatforms","params":{"projectRoot":"/home/hasan/FlutterProjects/playaround_with_widgets"}}]
[9:53:25 PM] [FlutterDaemon] [Info] <== [{"id":"11","result":{"platforms":["ios","android"]}}]
[9:53:25 PM] [FlutterDaemon] [Info] ==> [{"id":"12","method":"daemon.getSupportedPlatforms","params":{"projectRoot":"/home/hasan/FlutterProjects/playaround_with_widgets"}}]
[9:53:25 PM] [FlutterDaemon] [Info] <== [{"id":"12","result":{"platforms":["ios","android"]}}]
[9:53:25 PM] [General] [Info] Checking for errors before launching
[9:53:25 PM] [General] [Info] Debug session starting...
    {
        "name": "Dart ",
        "noDebug": true,
        "request": "launch",
        "type": "dart",
        "groupId": 0,
        "program": "/home/hasan/FlutterProjects/playaround_with_widgets/lib/main.dart",
        "cwd": "/home/hasan/FlutterProjects/playaround_with_widgets",
        "dartVersion": "2.9.2",
        "toolEnv": {
            "FLUTTER_HOST": "VSCode",
            "PUB_ENVIRONMENT": "vscode.dart-code"
        },
        "sendLogsToClient": true,
        "args": [],
        "vmAdditionalArgs": [],
        "vmServicePort": 0,
        "dartPath": "/home/hasan/snap/flutter/common/flutter/bin/cache/dart-sdk/bin/dart",
        "maxLogLineLength": 2000,
        "pubPath": "/home/hasan/snap/flutter/common/flutter/bin/cache/dart-sdk/bin/pub",
        "pubSnapshotPath": "/home/hasan/snap/flutter/common/flutter/bin/cache/dart-sdk/bin/snapshots/pub.dart.snapshot",
        "debugSdkLibraries": false,
        "debugExternalLibraries": false,
        "showDartDeveloperLogs": true,
        "evaluateGettersInDebugViews": true,
        "evaluateToStringInDebugViews": true,
        "globalFlutterArgs": [],
        "useFlutterStructuredErrors": true,
        "debugExtensionBackendProtocol": "ws",
        "flutterVersion": "1.20.4",
        "forceFlutterVerboseMode": true,
        "flutterTrackWidgetCreation": true,
        "flutterMode": "debug",
        "flutterPlatform": "default",
        "flutterPath": "/home/hasan/snap/flutter/common/flutter/bin/flutter",
        "workspaceConfig": {
            "useLsp": false,
            "flutterSdkHome": "/home/hasan/snap/flutter/common/flutter",
            "flutterScript": {
                "replacesArgs": 0,
                "script": "/snap/flutter/current/flutter.sh"
            }
        },
        "deviceId": "2b32ca38291c7ece",
        "deviceName": "SM N960F (android-arm64)",
        "showMemoryUsage": false,
        "debuggerType": 2
    }
[9:53:25 PM] [General] [Info] Using flutter debugger for Flutter
[9:53:25 PM] [General] [Info] Running debugger via node with /home/hasan/.vscode/extensions/dart-code.dart-code-3.15.0/out/dist/debug.js    flutter
[9:53:25 PM] [General] [Warn] Did not find session 606f2335-253c-4153-87c8-fc37cb29a34e to handle dart.progressStart. There were 0 sessions:
[9:53:25 PM] [General] [Warn] Event will be queued and processed when the session start event fires
[9:53:25 PM] [General] [Info] Processing delayed event dart.progressStart for session 606f2335-253c-4153-87c8-fc37cb29a34e
[9:53:25 PM] [FlutterRun] [Info] [Dart ] Spawning /snap/flutter/current/flutter.sh with args ["run","--machine","--target","lib/main.dart","-d","2b32ca38291c7ece","--track-widget-creation","--dart-define=flutter.inspector.structuredErrors=true","--start-paused","--web-server-debug-protocol","ws","--web-allow-expose-url","-v"]
[9:53:25 PM] [FlutterRun] [Info] [Dart ] ..  in /home/hasan/FlutterProjects/playaround_with_widgets
[9:53:25 PM] [FlutterRun] [Info] [Dart ] ..  with {"toolEnv":{"FLUTTER_HOST":"VSCode","PUB_ENVIRONMENT":"vscode.dart-code"}}
[9:53:25 PM] [FlutterRun] [Info] [Dart ]     PID: 24178
[9:53:25 PM] [FlutterRun] [Error] [Dart ] [ +177 ms] executing: [/home/hasan/snap/flutter/common/flutter/] git -c log.showSignature=false log -n 1 --pretty=format:%H
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [  +38 ms] Exit code 0 from: git -c log.showSignature=false log -n 1 --pretty=format:%H
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [        ] fba99f6cf9a14512e461e3122c8ddfaa25394e89
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [   +1 ms] executing: [/home/hasan/snap/flutter/common/flutter/] git tag --contains HEAD
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [ +238 ms] Exit code 0 from: git tag --contains HEAD
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [        ] 1.20.4
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [  +13 ms] executing: [/home/hasan/snap/flutter/common/flutter/] git rev-parse --abbrev-ref --symbolic @{u}
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [   +7 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [   +1 ms] origin/stable
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [   +1 ms] executing: [/home/hasan/snap/flutter/common/flutter/] git ls-remote --get-url origin
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [   +6 ms] Exit code 0 from: git ls-remote --get-url origin
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [        ] https://github.com/flutter/flutter.git
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [  +57 ms] executing: [/home/hasan/snap/flutter/common/flutter/] git rev-parse --abbrev-ref HEAD
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [   +6 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [        ] stable
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [  +52 ms] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [        ] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [        ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [   +4 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [  +21 ms] executing: /home/hasan/Android/Sdk/platform-tools/adb devices -l
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [  +47 ms] List of devices attached
           2b32ca38291c7ece       device usb:1-1 product:crownltexx model:SM_N960F device:crownlte transport_id:11
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [  +11 ms] /home/hasan/Android/Sdk/platform-tools/adb -s 2b32ca38291c7ece shell getprop
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [  +67 ms] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [   +4 ms] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [        ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [   +1 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [        ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [        ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [ +260 ms] Generating /home/hasan/FlutterProjects/playaround_with_widgets/android/app/src/main/java/io/flutter/plugins/GeneratedPluginRegistrant.java
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [  +32 ms] ro.hardware = samsungexynos9810
[9:53:26 PM] [FlutterRun] [Info] [Dart ] <== [{"event":"daemon.connected","params":{"version":"0.5.3","pid":24207}}]
[9:53:26 PM] [FlutterRun] [Info] [Dart ] <== [{"event":"app.start","params":{"appId":"1e456d6e-52ab-4211-8fbf-6b0232ff5976","deviceId":"2b32ca38291c7ece","directory":"/home/hasan/FlutterProjects/playaround_with_widgets","supportsRestart":true,"launchMode":"run"}}]
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [ +101 ms] Starting incremental build...
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [   +4 ms] Initializing file store
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [  +14 ms] Skipping target: gen_localizations
[9:53:26 PM] [FlutterRun] [Error] [Dart ] [   +5 ms] complete
[9:53:27 PM] [FlutterRun] [Error] [Dart ] [  +14 ms] /home/hasan/snap/flutter/common/flutter/bin/cache/dart-sdk/bin/dart --disable-dart-dev /home/hasan/snap/flutter/common/flutter/bin/cache/artifacts/engine/linux-x64/frontend_server.dart.snapshot --sdk-root /home/hasan/snap/flutter/common/flutter/bin/cache/artifacts/engine/common/flutter_patched_sdk/ --incremental --target=flutter --debugger-module-names -Ddart.developer.causal_async_stacks=true -Dflutter.inspector.structuredErrors=true --output-dill /tmp/flutter_tools.PCQUFP/flutter_tool.LUUJKW/app.dill --packages .packages -Ddart.vm.profile=false -Ddart.vm.product=false --bytecode-options=source-positions,local-var-info,debugger-stops,instance-field-initializers,keep-unreachable-code,avoid-closure-call-instructions --enable-asserts --track-widget-creation --initialize-from-dill build/f872507f30e2ff2523f0f1d19160266e.cache.dill.track.dill
[9:53:27 PM] [FlutterRun] [Error] [Dart ] [  +15 ms] executing: /home/hasan/Android/Sdk/build-tools/29.0.2/aapt dump xmltree /home/hasan/FlutterProjects/playaround_with_widgets/build/app/outputs/flutter-apk/app.apk AndroidManifest.xml
[   +6 ms] Exit code 0 from: /home/hasan/Android/Sdk/build-tools/29.0.2/aapt dump xmltree /home/hasan/FlutterProjects/playaround_with_widgets/build/app/outputs/flutter-apk/app.apk AndroidManifest.xml
[        ] N: android=http://schemas.android.com/apk/res/android
             E: manifest (line=2)
               A: android:versionCode(0x0101021b)=(type 0x10)0x1
               A: android:versionName(0x0101021c)="1.0.0" (Raw: "1.0.0")
               A: android:compileSdkVersion(0x01010572)=(type 0x10)0x1c
               A: android:compileSdkVersionCodename(0x01010573)="9" (Raw: "9")
               A: package="com.example.playaround_with_widgets" (Raw: "com.example.playaround_with_widgets")
               A: platformBuildVersionCode=(type 0x10)0x1c
               A: platformBuildVersionName=(type 0x10)0x9
               E: uses-sdk (line=7)
                 A: android:minSdkVersion(0x0101020c)=(type 0x10)0x10
                 A: android:targetSdkVersion(0x01010270)=(type 0x10)0x1c
               E: uses-permission (line=14)
                 A: android:name(0x01010003)="android.permission.INTERNET" (Raw: "android.permission.INTERNET")
               E: application (line=22)
                 A: android:label(0x01010001)="playaround_with_widgets" (Raw: "playaround_with_widgets")
                 A: android:icon(0x01010002)=@0x7f080000
                 A: android:name(0x01010003)="io.flutter.app.FlutterApplication" (Raw: "io.flutter.app.FlutterApplication")
                 A: android:debuggable(0x0101000f)=(type 0x12)0xffffffff
                 A: android:appComponentFactory(0x0101057a)="androidx.core.app.CoreComponentFactory" (Raw: "androidx.core.app.CoreComponentFactory")
                 E: activity (line=28)
                   A: android:theme(0x01010000)=@0x7f0a0000
   …
[9:53:27 PM] [FlutterRun] [Info] [Dart ] <== Launching lib/main.dart on SM N960F in debug mode...
[9:53:27 PM] [FlutterRun] [Error] [Dart ] [ +131 ms] Exit code 0 from: /home/hasan/Android/Sdk/platform-tools/adb -s 2b32ca38291c7ece shell -x logcat -v time -t 1
[9:53:27 PM] [FlutterRun] [Error] [Dart ] [        ] --------- beginning of main
           10-03 21:53:27.625 I/display ( 4395): HWC setVsyncEnabled = 0
[9:53:27 PM] [FlutterRun] [Error] [Dart ] [   +2 ms] executing: /home/hasan/Android/Sdk/platform-tools/adb -s 2b32ca38291c7ece shell -x logcat -v time -t 1
[9:53:27 PM] [FlutterRun] [Error] [Dart ] [ +131 ms] Exit code 0 from: /home/hasan/Android/Sdk/platform-tools/adb -s 2b32ca38291c7ece shell -x logcat -v time -t 1
[9:53:27 PM] [FlutterRun] [Error] [Dart ] [        ] --------- beginning of main
           10-03 21:53:27.625 I/display ( 4395): HWC setVsyncEnabled = 0
[9:53:27 PM] [FlutterRun] [Error] [Dart ] [  +59 ms] <- compile package:playaround_with_widgets/main.dart
[9:53:27 PM] [FlutterRun] [Error] [Dart ] [  +38 ms] executing: /home/hasan/Android/Sdk/platform-tools/adb version
[9:53:27 PM] [FlutterRun] [Error] [Dart ] [  +15 ms] Android Debug Bridge version 1.0.41
           Version 30.0.4-6686687
           Installed as /home/hasan/Android/Sdk/platform-tools/adb
[9:53:27 PM] [FlutterRun] [Error] [Dart ] [   +3 ms] executing: /home/hasan/Android/Sdk/platform-tools/adb start-server
[9:53:27 PM] [FlutterRun] [Error] [Dart ] [  +42 ms] Building APK
[9:53:27 PM] [FlutterRun] [Info] [Dart ] <== [{"event":"app.progress","params":{"appId":"1e456d6e-52ab-4211-8fbf-6b0232ff5976","id":"0","progressId":null,"message":"Running Gradle task 'assembleDebug'..."}}]
[9:53:27 PM] [FlutterRun] [Error] [Dart ] [  +46 ms] gradle.properties already sets `android.enableR8`
[9:53:27 PM] [FlutterRun] [Error] [Dart ] [   +4 ms] Using gradle from /home/hasan/FlutterProjects/playaround_with_widgets/android/gradlew.
[9:53:27 PM] [FlutterRun] [Error] [Dart ] [   +1 ms] /home/hasan/FlutterProjects/playaround_with_widgets/android/gradlew mode: 33277 rwxrwxr-x.
[9:53:27 PM] [FlutterRun] [Error] [Dart ] [  +13 ms] executing: /home/hasan/Downloads/android-studio-ide-193.6626763-linux/android-studio/jre/bin/java -version
[9:53:27 PM] [FlutterRun] [Error] [Dart ] [  +96 ms] Exit code 0 from: /home/hasan/Downloads/android-studio-ide-193.6626763-linux/android-studio/jre/bin/java -version
[9:53:27 PM] [FlutterRun] [Error] [Dart ] [        ] openjdk version "1.8.0_242-release"
           OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)
           OpenJDK 64-Bit Server VM (build 25.242-b3-6222593, mixed mode)
[9:53:27 PM] [FlutterRun] [Error] [Dart ] [   +9 ms] executing: [/home/hasan/FlutterProjects/playaround_with_widgets/android/] /home/hasan/FlutterProjects/playaround_with_widgets/android/gradlew -q -Ptarget-platform=android-arm64 -Ptarget=/home/hasan/FlutterProjects/playaround_with_widgets/lib/main.dart -Ptrack-widget-creation=true -Pfilesystem-scheme=org-dartlang-root -Pdart-defines=flutter.inspector.structuredErrors%3Dtrue assembleDebug
[9:53:31 PM] [FlutterRun] [Info] [Dart ] <== [{"event":"app.progress","params":{"appId":"1e456d6e-52ab-4211-8fbf-6b0232ff5976","id":"0","progressId":null,"finished":true}}]
[9:53:32 PM] [FlutterRun] [Error] [Dart ] [+4543 ms] calculateSha: LocalDirectory: '/home/hasan/FlutterProjects/playaround_with_widgets/build/app/outputs/flutter-apk'/app.apk
[9:53:32 PM] [FlutterRun] [Error] [Dart ] [ +155 ms] calculateSha: reading file took 153us
[9:53:33 PM] [FlutterRun] [Error] [Dart ] [ +869 ms] calculateSha: computing sha took 868us
[9:53:33 PM] [FlutterRun] [Info] [Dart ] <== ✓ Built build/app/outputs/flutter-apk/app-debug.apk.
[9:53:33 PM] [FlutterRun] [Error] [Dart ] [   +8 ms] executing: /home/hasan/Android/Sdk/build-tools/29.0.2/aapt dump xmltree /home/hasan/FlutterProjects/playaround_with_widgets/build/app/outputs/flutter-apk/app.apk AndroidManifest.xml
[9:53:33 PM] [FlutterRun] [Error] [Dart ] [  +13 ms] Exit code 0 from: /home/hasan/Android/Sdk/build-tools/29.0.2/aapt dump xmltree /home/hasan/FlutterProjects/playaround_with_widgets/build/app/outputs/flutter-apk/app.apk AndroidManifest.xml
[9:53:33 PM] [FlutterRun] [Error] [Dart ] [        ] N: android=http://schemas.android.com/apk/res/android
             E: manifest (line=2)
               A: android:versionCode(0x0101021b)=(type 0x10)0x1
               A: android:versionName(0x0101021c)="1.0.0" (Raw: "1.0.0")
               A: android:compileSdkVersion(0x01010572)=(type 0x10)0x1c
               A: android:compileSdkVersionCodename(0x01010573)="9" (Raw: "9")
               A: package="com.example.playaround_with_widgets" (Raw: "com.example.playaround_with_widgets")
               A: platformBuildVersionCode=(type 0x10)0x1c
               A: platformBuildVersionName=(type 0x10)0x9
               E: uses-sdk (line=7)
                 A: android:minSdkVersion(0x0101020c)=(type 0x10)0x10
                 A: android:targetSdkVersion(0x01010270)=(type 0x10)0x1c
               E: uses-permission (line=14)
                 A: android:name(0x01010003)="android.permission.INTERNET" (Raw: "android.permission.INTERNET")
               E: application (line=22)
                 A: android:label(0x01010001)="playaround_with_widgets" (Raw: "playaround_with_widgets")
                 A: android:icon(0x01010002)=@0x7f080000
                 A: android:name(0x01010003)="io.flutter.app.FlutterApplication" (Raw: "io.flutter.app.FlutterApplication")
                 A: android:debuggable(0x0101000f)=(type 0x12)0xffffffff
                 A: android:appComponentFactory(0x0101057a)="androidx.core.app.CoreComponentFactory" (Raw: "androidx.core.app.CoreComponentFactory")
                 E: activity (line=28)
                   A: android:theme(0x01010000)=@0x7f0a0000
                   A: android:name(0x01010003)="com.example.playaround_with_widgets.MainActivity" (Raw: "com.example.playaround_with_widgets.MainActivity")
                   A: android:launchMode(0x0101001d)=(type 0x10)0x1
                   A: android:configChanges(0x0101001f)=(type 0x11)0x40003fb4
                   A: android:windowSoftInputMode(0x0101022b)=(type 0x11)0x10
                …
[9:53:33 PM] [FlutterRun] [Error] [Dart ] [  +96 ms] executing: /home/hasan/Android/Sdk/platform-tools/adb -s 2b32ca38291c7ece shell pm list packages com.example.playaround_with_widgets
[9:53:33 PM] [FlutterRun] [Error] [Dart ] [  +88 ms] package:com.example.playaround_with_widgets
[9:53:33 PM] [FlutterRun] [Error] [Dart ] [   +5 ms] executing: /home/hasan/Android/Sdk/platform-tools/adb -s 2b32ca38291c7ece shell cat /data/local/tmp/sky.com.example.playaround_with_widgets.sha1
[9:53:33 PM] [FlutterRun] [Error] [Dart ] [  +52 ms] 7dc9fbefd9d963954ab3d21f7251e1644b0f9c39
[9:53:33 PM] [FlutterRun] [Error] [Dart ] [   +1 ms] Latest build already installed.
[9:53:33 PM] [FlutterRun] [Error] [Dart ] [        ] SM N960F startApp
[9:53:33 PM] [FlutterRun] [Error] [Dart ] [   +5 ms] executing: /home/hasan/Android/Sdk/platform-tools/adb -s 2b32ca38291c7ece shell am start -a android.intent.action.RUN -f 0x20000000 --ez enable-background-compilation true --ez enable-dart-profiling true --ez enable-checked-mode true --ez verify-entry-points true --ez start-paused true com.example.playaround_with_widgets/com.example.playaround_with_widgets.MainActivity
[9:53:33 PM] [FlutterRun] [Error] [Dart ] [  +80 ms] Starting: Intent { act=android.intent.action.RUN flg=0x20000000 cmp=com.example.playaround_with_widgets/.MainActivity (has extras) }
[9:53:33 PM] [FlutterRun] [Error] [Dart ] [   +2 ms] Waiting for observatory port to be available...
[9:53:34 PM] [FlutterRun] [Error] [Dart ] [ +659 ms] Observatory URL on device: http://127.0.0.1:38087/LNHnuAugX9U=/
[9:53:34 PM] [FlutterRun] [Error] [Dart ] [   +2 ms] executing: /home/hasan/Android/Sdk/platform-tools/adb -s 2b32ca38291c7ece forward tcp:0 tcp:38087
[9:53:34 PM] [FlutterRun] [Error] [Dart ] [  +19 ms] 43527
[9:53:34 PM] [FlutterRun] [Error] [Dart ] [        ] Forwarded host port 43527 to device port 38087 for Observatory
[9:53:34 PM] [FlutterRun] [Error] [Dart ] [   +9 ms] Caching compiled dill
[9:53:34 PM] [FlutterRun] [Error] [Dart ] [ +444 ms] Connecting to service protocol: http://127.0.0.1:43527/LNHnuAugX9U=/
[9:53:35 PM] [FlutterRun] [Error] [Dart ] [ +623 ms] Successfully connected to service protocol: http://127.0.0.1:43527/LNHnuAugX9U=/
[9:53:35 PM] [FlutterRun] [Info] [Dart ] <== [{"event":"app.progress","params":{"appId":"1e456d6e-52ab-4211-8fbf-6b0232ff5976","id":"1","progressId":null,"message":"Waiting for SM N960F to report its views..."}}]
[9:53:35 PM] [FlutterRun] [Info] [Dart ] <== [{"event":"app.progress","params":{"appId":"1e456d6e-52ab-4211-8fbf-6b0232ff5976","id":"1","progressId":null,"finished":true}}]
[9:53:35 PM] [FlutterRun] [Error] [Dart ] [  +39 ms] DevFS: Creating new filesystem on the device (null)
[9:53:35 PM] [FlutterRun] [Error] [Dart ] [ +125 ms] DevFS: Created new filesystem on the device (file:///data/user/0/com.example.playaround_with_widgets/code_cache/playaround_with_widgetsMMXGUO/playaround_with_widgets/)
[9:53:35 PM] [FlutterRun] [Error] [Dart ] [  +13 ms] Updating assets
[9:53:35 PM] [FlutterRun] [Info] [Dart ] <== [{"event":"app.debugPort","params":{"appId":"1e456d6e-52ab-4211-8fbf-6b0232ff5976","port":43527,"wsUri":"ws://127.0.0.1:43527/LNHnuAugX9U=/ws","baseUri":"file:///data/user/0/com.example.playaround_with_widgets/code_cache/playaround_with_widgetsMMXGUO/playaround_with_widgets/"}}]
[9:53:35 PM] [FlutterRun] [Info] [Dart ] <== [{"event":"app.progress","params":{"appId":"1e456d6e-52ab-4211-8fbf-6b0232ff5976","id":"2","progressId":null,"message":"Syncing files to device SM N960F..."}}]
[9:53:35 PM] [FlutterRun] [Error] [Dart ] [ +190 ms] Scanning asset files
[9:53:35 PM] [FlutterRun] [Error] [Dart ] [   +3 ms] <- reset
[9:53:35 PM] [FlutterRun] [Error] [Dart ] [        ] Compiling dart to kernel with 0 updated files
[9:53:35 PM] [FlutterRun] [Error] [Dart ] [   +1 ms] <- recompile package:playaround_with_widgets/main.dart 0979208a-d412-41e2-9bb6-cd3b9b19c0b5
[9:53:35 PM] [FlutterRun] [Error] [Dart ] [        ] <- 0979208a-d412-41e2-9bb6-cd3b9b19c0b5
[9:53:36 PM] [FlutterRun] [Error] [Dart ] [ +346 ms] Updating files
[9:53:36 PM] [FlutterRun] [Error] [Dart ] [ +344 ms] DevFS: Sync finished
[9:53:36 PM] [FlutterRun] [Info] [Dart ] <== [{"event":"app.progress","params":{"appId":"1e456d6e-52ab-4211-8fbf-6b0232ff5976","id":"2","progressId":null,"finished":true}}]
[9:53:36 PM] [FlutterRun] [Error] [Dart ] [   +4 ms] Synced 0.9MB.
[9:53:36 PM] [FlutterRun] [Error] [Dart ] [  +10 ms] <- accept
[9:53:36 PM] [FlutterRun] [Error] [Dart ] [  +13 ms] Connected to _flutterView/0x75c845c820.
[9:53:36 PM] [FlutterRun] [Info] [Dart ] <== [{"event":"app.started","params":{"appId":"1e456d6e-52ab-4211-8fbf-6b0232ff5976"}}]
[9:53:36 PM] [VmService] [Info] [Dart ] Initialising debugger for ws://127.0.0.1:43527/LNHnuAugX9U=/ws
[9:53:36 PM] [VmService] [Info] [Dart ] Connecting to VM Service at ws://127.0.0.1:43527/LNHnuAugX9U=/ws
[9:53:36 PM] [General] [Info] Spawning /home/hasan/snap/flutter/common/flutter/bin/cache/dart-sdk/bin/pub with args ["global","list"]
[9:53:36 PM] [CommandProcesses] [Info] (PROC 24329) Logging data for process...
[9:53:36 PM] [VmService] [Info] [Dart ] ==> {"id":"0","jsonrpc":"2.0","method":"getVersion","params":{}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0", "result":{"type":"Version","major":3,"minor":36,"_privateMajor":0,"_privateMinor":0},"id":"0"}
[9:53:36 PM] [VmService] [Info] [Dart ] ==> {"id":"1","jsonrpc":"2.0","method":"streamListen","params":{"streamId":"Isolate"}}
[9:53:36 PM] [VmService] [Info] [Dart ] ==> {"id":"2","jsonrpc":"2.0","method":"streamListen","params":{"streamId":"Extension"}}
[9:53:36 PM] [VmService] [Info] [Dart ] ==> {"id":"3","jsonrpc":"2.0","method":"streamListen","params":{"streamId":"Debug"}}
[9:53:36 PM] [VmService] [Info] [Dart ] ==> {"id":"4","jsonrpc":"2.0","method":"streamListen","params":{"streamId":"Service"}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Service","event":{"type":"Event","kind":"ServiceRegistered","timestamp":1601751217254,"service":"reloadSources","method":"s0.reloadSources","alias":"Flutter Tools"}}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Service","event":{"type":"Event","kind":"ServiceRegistered","timestamp":1601751217259,"service":"reloadMethod","method":"s0.reloadMethod","alias":"Flutter Tools"}}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Service","event":{"type":"Event","kind":"ServiceRegistered","timestamp":1601751217263,"service":"hotRestart","method":"s0.hotRestart","alias":"Flutter Tools"}}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Service","event":{"type":"Event","kind":"ServiceRegistered","timestamp":1601751217267,"service":"flutterVersion","method":"s0.flutterVersion","alias":"Flutter Tools"}}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Service","event":{"type":"Event","kind":"ServiceRegistered","timestamp":1601751217271,"service":"compileExpression","method":"s0.compileExpression","alias":"Flutter Tools"}}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Service","event":{"type":"Event","kind":"ServiceRegistered","timestamp":1601751217275,"service":"flutterMemoryInfo","method":"s0.flutterMemoryInfo","alias":"Flutter Tools"}}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Service","event":{"type":"Event","kind":"ServiceRegistered","timestamp":1601751217279,"service":"flutterGetSkSL","method":"s0.flutterGetSkSL","alias":"Flutter Tools"}}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","id":"1","result":{"type":"Success"}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","id":"2","result":{"type":"Success"}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","id":"3","result":{"type":"Success"}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","id":"4","result":{"type":"Success"}}
[9:53:36 PM] [VmService] [Info] [Dart ] ==> {"id":"5","jsonrpc":"2.0","method":"streamListen","params":{"streamId":"Logging"}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","id":"5","result":{"type":"Success"}}
[9:53:36 PM] [VmService] [Info] [Dart ] ==> {"id":"6","jsonrpc":"2.0","method":"getVM","params":{}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0", "result":{"type":"VM","name":"vm","architectureBits":64,"hostCPU":"Unknown","operatingSystem":"android","targetCPU":"arm64","version":"2.9.2 (stable) (Wed Aug 26 12:44:28 2020 +0200) on \"android_arm64\"","_profilerMode":"VM","_nativeZoneMemoryUsage":0,"pid":11916,"startTime":1601751214508,"_embedder":"Flutter","_maxRSS":232460288,"_currentRSS":226238464,"isolates":[{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"}],"isolateGroups":[{"type":"@IsolateGroup","id":"isolateGroups\/4712865378554727099","name":"main.dart","number":"4712865378554727099"}]},"id":"6"}
[9:53:36 PM] [VmService] [Info] [Dart ] ==> {"id":"7","jsonrpc":"2.0","method":"getIsolate","params":{"isolateId":"isolates/746125946343743"}}
[9:53:36 PM] [CommandProcesses] [Info] (PROC 24329) devtools 0.9.3+3
[9:53:36 PM] [CommandProcesses] [Info] (PROC 24329) exited (0, null)
[9:53:36 PM] [CommandProcesses] [Info] (PROC 24329) closed (0, null)
[9:53:36 PM] [DevTools] [Info] Spawning /home/hasan/snap/flutter/common/flutter/bin/cache/dart-sdk/bin/pub with args ["global","run","devtools","--machine","--try-ports","10","--allow-embedding"]
[9:53:36 PM] [DevTools] [Info] ..  with {"toolEnv":{"FLUTTER_HOST":"VSCode","PUB_ENVIRONMENT":"vscode.dart-code"}}
[9:53:36 PM] [DevTools] [Info]     PID: 22461
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0", "result":{"type":"Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743","_originNumber":"746125946343743","startTime":1601751214534,"_heaps":{"new":{"type":"HeapSpace","name":"new","vmName":"Scavenger","collections":2,"avgCollectionPeriodMillis":1428.4095,"used":524288,"capacity":4194304,"external":0,"time":0.000749},"old":{"type":"HeapSpace","name":"old","vmName":"PageSpace","collections":3,"used":27455744,"capacity":28835840,"external":0,"time":0.012319,"avgCollectionPeriodMillis":952.2923333333333}},"runnable":true,"livePorts":1,"pauseOnExit":false,"_isReloading":false,"pauseEvent":{"type":"Event","kind":"PauseStart","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751214851},"rootLib":{"type":"@Library","fixedId":true,"id":"libraries\/@510391976","name":"","uri":"package:playaround_with_widgets\/main.dart"},"_numZoneHandles":10,"_numScopedHandles":40,"_tagCounters":{"names":["Idle","LoadWait","VM","LoadBytecode","CompileOptimized","CompileUnoptimized","ClassLoading","CompileParseRegExp","DartCompiled","DartInterpreted","GCNewSpace","GCOldSpace","GCIdle","Embedder","Runtime","Native"],"counters":[0,0,184,0,0,70,0,0,0,0,0,0,0,0,3,0]},"libraries":[{"type":"@Library","fixedId":true,"id":"libraries\/@0150898","name":"dart.core","uri":"dart:core"},{"type":"@Library","fixedId":true,"id":"libraries\/@1026248","name":"dart.isolate","uri":"dart:isolate"},{"type":"@Library","fixedId":true,"id":"libraries\/@2408521","name":"dart.mirrors","uri":"dart:mirrors"},{"type":"@Library","fixedId":true,"id":"libraries\/@3220832","name":"dart.collection","uri":"dart:collection"},{"type":"@Library","fixedId":true,"id":"libraries\/@4048458","name":"dart.async","uri":"dart:async"},{"type":"@Library","fixedId":true,"id":"libraries\/@5383715","name":"dart.developer","uri":"dart:developer"},{"type":"@Library","fixedId":true,"id":"libraries\/@6320332","name":"nati…
[9:53:36 PM] [VmService] [Info] [Dart ] ==> {"id":"8","jsonrpc":"2.0","method":"setExceptionPauseMode","params":{"isolateId":"isolates/746125946343743","mode":"None"}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Debug","event":{"type":"Event","kind":"_DebuggerSettingsUpdate","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751217442,"_debuggerSettings":{"_exceptions":"none"}}}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0", "result":{"type":"Success"},"id":"8"}
[9:53:36 PM] [VmService] [Info] [Dart ] ==> {"id":"9","jsonrpc":"2.0","method":"setExceptionPauseMode","params":{"isolateId":"isolates/746125946343743","mode":"None"}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Debug","event":{"type":"Event","kind":"_DebuggerSettingsUpdate","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751217497,"_debuggerSettings":{"_exceptions":"none"}}}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0", "result":{"type":"Success"},"id":"9"}
[9:53:36 PM] [VmService] [Info] [Dart ] ==> {"id":"10","jsonrpc":"2.0","method":"resume","params":{"isolateId":"isolates/746125946343743"}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Debug","event":{"type":"Event","kind":"Resume","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751217730}}}
[9:53:36 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0", "result":{"type":"Success"},"id":"10"}
[9:53:37 PM] [DevTools] [Error] Unhandled exception:
[9:53:37 PM] [DevTools] [Error] 
ProcessException: No such file or directory
  Command: google-chrome http://127.0.0.1:9100
[9:53:37 PM] [DevTools] [Info] Process terminated! 255, null
[9:53:37 PM] [General] [Error] Dart DevTools exited with code 255.
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218057,"extensionRPC":"ext.flutter.reassemble"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218057,"extensionRPC":"ext.flutter.exit"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218058,"extensionRPC":"ext.flutter.platformOverride"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218058,"extensionRPC":"ext.flutter.brightnessOverride"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218059,"extensionRPC":"ext.flutter.timeDilation"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218060,"extensionRPC":"ext.flutter.evict"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218061,"extensionRPC":"ext.flutter.debugPaint"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218061,"extensionRPC":"ext.flutter.debugPaintBaselinesEnabled"}}}
[9:53:37 PM] [FlutterRun] [Info] [Dart ] ==> [{"id":"1","method":"app.callServiceExtension","params":{"appId":"1e456d6e-52ab-4211-8fbf-6b0232ff5976","methodName":"ext.flutter.platformOverride"}}]
[9:53:37 PM] [FlutterRun] [Info] [Dart ] ==> [{"id":"2","method":"app.callServiceExtension","params":{"appId":"1e456d6e-52ab-4211-8fbf-6b0232ff5976","methodName":"ext.flutter.brightnessOverride"}}]
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218061,"extensionRPC":"ext.flutter.repaintRainbow"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218061,"extensionRPC":"ext.flutter.debugCheckElevationsEnabled"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218061,"extensionRPC":"ext.flutter.debugDumpLayerTree"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218061,"extensionRPC":"ext.flutter.debugDumpRenderTree"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218061,"extensionRPC":"ext.flutter.debugDumpSemanticsTreeInTraversalOrder"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218061,"extensionRPC":"ext.flutter.debugDumpSemanticsTreeInInverseHitTestOrder"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218061,"extensionRPC":"ext.flutter.debugDumpApp"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218061,"extensionRPC":"ext.flutter.showPerformanceOverlay"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218061,"extensionRPC":"ext.flutter.didSendFirstFrameEvent"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218061,"extensionRPC":"ext.flutter.didSendFirstFrameRasterizedEvent"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218061,"extensionRPC":"ext.flutter.fastReassemble"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218061,"extensionRPC":"ext.flutter.profileWidgetBuilds"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218064,"extensionRPC":"ext.flutter.debugAllowBanner"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218064,"extensionRPC":"ext.flutter.debugWidgetInspector"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218070,"extensionRPC":"ext.flutter.inspector.structuredErrors"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218071,"extensionRPC":"ext.flutter.inspector.show"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218071,"extensionRPC":"ext.flutter.inspector.trackRebuildDirtyWidgets"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218071,"extensionRPC":"ext.flutter.inspector.trackRepaintWidgets"}}}
[9:53:37 PM] [FlutterRun] [Info] [Dart ] ==> [{"id":"3","method":"app.callServiceExtension","params":{"appId":"1e456d6e-52ab-4211-8fbf-6b0232ff5976","methodName":"ext.flutter.inspector.structuredErrors","params":{"enabled":true}}}]
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218071,"extensionRPC":"ext.flutter.inspector.disposeAllGroups"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218072,"extensionRPC":"ext.flutter.inspector.disposeGroup"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218072,"extensionRPC":"ext.flutter.inspector.isWidgetTreeReady"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218072,"extensionRPC":"ext.flutter.inspector.disposeId"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218073,"extensionRPC":"ext.flutter.inspector.setPubRootDirectories"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218073,"extensionRPC":"ext.flutter.inspector.setSelectionById"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218073,"extensionRPC":"ext.flutter.inspector.getParentChain"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218073,"extensionRPC":"ext.flutter.inspector.getProperties"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218073,"extensionRPC":"ext.flutter.inspector.getChildren"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218073,"extensionRPC":"ext.flutter.inspector.getChildrenSummaryTree"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218073,"extensionRPC":"ext.flutter.inspector.getChildrenDetailsSubtree"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218073,"extensionRPC":"ext.flutter.inspector.getRootWidget"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218073,"extensionRPC":"ext.flutter.inspector.getRootRenderObject"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218073,"extensionRPC":"ext.flutter.inspector.getRootWidgetSummaryTree"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218073,"extensionRPC":"ext.flutter.inspector.getDetailsSubtree"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218074,"extensionRPC":"ext.flutter.inspector.getSelectedRenderObject"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218074,"extensionRPC":"ext.flutter.inspector.getSelectedWidget"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218074,"extensionRPC":"ext.flutter.inspector.getSelectedSummaryWidget"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218074,"extensionRPC":"ext.flutter.inspector.isWidgetCreationTracked"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Isolate","event":{"type":"Event","kind":"ServiceExtensionAdded","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218074,"extensionRPC":"ext.flutter.inspector.screenshot"}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Extension","event":{"type":"Event","kind":"Extension","extensionKind":"Flutter.FrameworkInitialization","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218080,"extensionData":{}}}}
[9:53:37 PM] [FlutterRun] [Info] [Dart ] ==> [{"id":"4","method":"app.callServiceExtension","params":{"appId":"1e456d6e-52ab-4211-8fbf-6b0232ff5976","methodName":"ext.flutter.inspector.setPubRootDirectories","params":{"arg0":"/home/hasan/FlutterProjects/playaround_with_widgets","arg1":"/home/hasan/FlutterProjects/playaround_with_widgets","isolateId":"isolates/746125946343743"}}}]
[9:53:37 PM] [FlutterRun] [Info] [Dart ] ==> [{"id":"5","method":"app.callServiceExtension","params":{"appId":"1e456d6e-52ab-4211-8fbf-6b0232ff5976","methodName":"ext.flutter.inspector.isWidgetCreationTracked"}}]
[9:53:37 PM] [FlutterRun] [Info] [Dart ] <== [{"id":"1","result":{"value":"android","type":"_extensionType","method":"ext.flutter.platformOverride"}}]
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Extension","event":{"type":"Event","kind":"Extension","extensionKind":"Flutter.ServiceExtensionStateChanged","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218334,"extensionData":{"extension":"ext.flutter.inspector.structuredErrors","value":true}}}}
[9:53:37 PM] [FlutterRun] [Info] [Dart ] <== [{"id":"2","result":{"value":"Brightness.light","type":"_extensionType","method":"ext.flutter.brightnessOverride"}}]
[9:53:37 PM] [FlutterRun] [Info] [Dart ] <== [{"id":"3","result":{"enabled":"true","type":"_extensionType","method":"ext.flutter.inspector.structuredErrors"}}]
[9:53:37 PM] [FlutterRun] [Info] [Dart ] <== [{"id":"4","result":{"result":null,"type":"_extensionType","method":"ext.flutter.inspector.setPubRootDirectories"}}]
[9:53:37 PM] [FlutterRun] [Info] [Dart ] <== [{"id":"5","result":{"result":true,"type":"_extensionType","method":"ext.flutter.inspector.isWidgetCreationTracked"}}]
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Extension","event":{"type":"Event","kind":"Extension","extensionKind":"Flutter.Frame","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218374,"extensionData":{"number":1,"startTime":208799843949,"elapsed":3448501,"build":3438021,"raster":10355}}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Extension","event":{"type":"Event","kind":"Extension","extensionKind":"Flutter.FirstFrame","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218375,"extensionData":{}}}}
[9:53:37 PM] [VmService] [Info] [Dart ] <== {"jsonrpc":"2.0","method":"streamNotify","params":{"streamId":"Extension","event":{"type":"Event","kind":"Extension","extensionKind":"Flutter.Frame","isolate":{"type":"@Isolate","id":"isolates\/746125946343743","name":"main","number":"746125946343743"},"timestamp":1601751218503,"extensionData":{"number":2,"startTime":208803353483,"elapsed":16443,"build":12340,"raster":4027}}}}
[9:53:39 PM] [General] [Info] Spawning /home/hasan/snap/flutter/common/flutter/bin/cache/dart-sdk/bin/pub with args ["global","activate","devtools"]
[9:53:39 PM] [CommandProcesses] [Info] (PROC 24354) Logging data for process...
[9:53:39 PM] [CommandProcesses] [Info] (PROC 24354) Package devtools is currently active at version 0.9.3+3.
[9:53:39 PM] [CommandProcesses] [Info] (PROC 24354) Resolving dependencies...
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) + args 1.6.0
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) + async 2.4.2 (2.5.0-nullsafety.1 available)
+ browser_launcher 0.1.7
+ charcode 1.1.3 (1.2.0-nullsafety.1 available)
+ collection 1.14.13 (1.15.0-nullsafety.3 available)
+ convert 2.1.1
+ crypto 2.1.5
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) 
+ devtools 0.9.3+3
+ devtools_server 0.9.3+3
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) + devtools_shared 0.9.3+3
+ http 0.12.2
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) + http_multi_server 2.2.0
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) + http_parser 3.1.4
+ intl 0.16.1
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) 
+ logging 0.11.4
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) 
+ meta 1.2.3 (1.3.0-nullsafety.3 available)
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) + mime 0.9.7
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) + path 1.7.0 (1.8.0-nullsafety.1 available)
+ pedantic 1.9.2 (1.10.0-nullsafety.1 available)
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) 
+ shelf 0.7.9
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) 
+ shelf_proxy 0.1.0+7
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) + shelf_static 0.2.8
+ source_span 1.7.0 (1.8.0-nullsafety.2 available)
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) 
+ sse 3.5.0
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) + stack_trace 1.9.5 (1.10.0-nullsafety.2 available)
+ stream_channel 2.0.0 (2.1.0-nullsafety.1 available)
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) 
+ string_scanner 1.0.5 (1.1.0-nullsafety.1 available)
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) 
+ term_glyph 1.1.0 (1.2.0-nullsafety.1 available)
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) + typed_data 1.2.0 (1.3.0-nullsafety.3 available)
+ usage 3.4.2
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) 
+ uuid 2.2.2
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) + vm_service 5.2.0
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) + webkit_inspection_protocol 0.7.3
[9:53:43 PM] [CommandProcesses] [Info] (PROC 24354) Precompiling executables...
[9:53:47 PM] [CommandProcesses] [Info] (PROC 24354) Precompiled devtools:devtools.
[9:53:47 PM] [CommandProcesses] [Info] (PROC 24354) Installed executable devtools.
[9:53:47 PM] [CommandProcesses] [Info] (PROC 24354) Warning: Pub installs executables into $HOME/.pub-cache/bin, which is not on your path.
[9:53:47 PM] [CommandProcesses] [Info] (PROC 24354) You can fix that by adding this to your shell's config file (.bashrc, .bash_profile, etc.):

  export PATH="$PATH":"$HOME/.pub-cache/bin"
[9:53:47 PM] [CommandProcesses] [Info] (PROC 24354) Activated devtools 0.9.3+3.
[9:53:47 PM] [CommandProcesses] [Info] (PROC 24354) exited (0, null)
[9:53:47 PM] [CommandProcesses] [Info] (PROC 24354) closed (0, null)
[9:53:47 PM] [DevTools] [Info] Spawning /home/hasan/snap/flutter/common/flutter/bin/cache/dart-sdk/bin/pub with args ["global","run","devtools","--machine","--try-ports","10","--allow-embedding"]
[9:53:47 PM] [DevTools] [Info] ..  with {"toolEnv":{"FLUTTER_HOST":"VSCode","PUB_ENVIRONMENT":"vscode.dart-code"}}
[9:53:47 PM] [DevTools] [Info]     PID: 22461
[9:53:48 PM] [DevTools] [Error] Unhandled exception:
ProcessException: No such file or directory
  Command: google-chrome http://127.0.0.1:9100
[9:53:48 PM] [DevTools] [Info] Process terminated! 255, null
[9:53:48 PM] [General] [Error] Dart DevTools exited with code 255.
Sat Oct 03 2020 [21:53:52 GMT+0300 (Arabian Standard Time)] Log file ended

[nolyoi]

I'm getting this error on my Mac now too.

[DanTup]

Thanks for the report. This is the issue described at https://github.com/flutter/devtools/issues/2405. A bug in the DevTools server is trying to launch Chrome at startup (and the exception caused by not having Chrome installed is causing the server to terminate).

Installing Chrome temporarily will solve the issue, but I've opened a PR that should fix this properly to not try to launch Chrome when running DevTools in --machine mode (https://github.com/flutter/devtools/issues/2405).

[TafkaMax]

Having the same problem, using chromium for Manjaro, now installed chrome how can I this functionality to terminal now? Change path variable?

[DanTup]

@TafkaMax I think on Manjaro the binary is named google-chrome-stable instead of google-chrome it might not be picked up - see https://github.com/Dart-Code/Dart-Code/issues/1830#issuecomment-580042188 and https://github.com/Dart-Code/Dart-Code/issues/1830#issuecomment-580914652.

If you symlink /usr/bin/google-chrome to google-chrome-stable (or possibly even Chromium) then that may solve the issue in the meantime.

[TafkaMax]

@TafkaMax I think on Manjaro the binary is named google-chrome-stable instead of google-chrome it might not be picked up - see #1830 (comment) and #1830 (comment).

If you symlink /usr/bin/google-chrome to google-chrome-stable (or possibly even Chromium) then that may solve the issue in the meantime.

Thanks for responding. In manjaro chromium installs to /usr/bin/chromium. Changed that to sudo ln -s /usr/bin/chromium /usr/bin/google-chrome.

[DanTup]

A new version of DevTools has been published with a fix. It may take up to 24 hours for VS Code to notice the update, but you can upgrade manually by running pub global activate devtools (note: do not prefix with flutter. If pub is not in your PATH, you may need to run it using an absolute path).

Please let me know if you still have issues when pub global list shows DevTools at version 0.9.3+4, and sorry for the bother!