Cli: Gradle exception: Failed to parse React Native CLI configuration

Created on 22 Nov 2019 · 22Comments · Source: react-native-community/cli

Environment

System:
OS: Windows 10
CPU: (4) x64 Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz
Memory: 1.47 GB / 7.96 GB
Binaries:
Node: 12.8.1 - C:\Program Files\nodejs\node.EXE
Yarn: 1.19.1 - C:\Program Files (x86)\Yarn\bin\yarn.CMD
npm: 6.10.2 - C:\Program Files\nodejs\npm.CMD
SDKs:
Android SDK:
API Levels: 25, 27, 28, 29
Build Tools: 25.0.3, 28.0.3, 29.0.2
System Images: android-28 | Google Play Intel x86 Atom, android-29 | Google APIs Intel x86 Atom, android-29 | Google Play Intel x86 Atom
npmPackages:
react: 16.9.0 => 16.9.0
react-native: 0.61.4 => 0.61.4

Description

Simply trying to run the react-native run-android command returns me this React Native CLI-related error.

`
info Running jetifier to migrate libraries to AndroidX. You can disable it using "--no-jetifier" flag.
Jetifier found 1032 file(s) to forward-jetify. Using 4 workers...
info Starting JS server...
info Installing the app...
:ReactNative:Failed to parse React Native CLI configuration: groovy.json.JsonException: Unable to determine the current character, it is not a string, number, array, or object

The current character read is 'E' with an int value of 69
Unable to determine the current character, it is not a string, number, array, or object
line number 1
index number 0
Error: EPERM: operation not permitted, scandir 'C:/Users/Master/Desktop/proj/UltimaTentativa/android/app/build/intermediates/signing_config/debug/out/signing-config.json' at Object.readdirSync (fs.js:795:3) at GlobSync._readdir (C:\Users\Master\Desktop\proj\UltimaTentativa\node_modules\glob\sync.js:288:41) at GlobSync._readdirInGlobStar (C:\Users\Master\Desktop\proj\UltimaTentativa\node_modules\glob\sync.js:267:20) at GlobSync._readdir (C:\Users\Master\Desktop\proj\UltimaTentativa\node_modules\glob\sync.js:276:17) at GlobSync._processReaddir (C:\Users\Master\Desktop\proj\UltimaTentativa\node_modules\glob\sync.js:137:22) at GlobSync._process (C:\Users\Master\Desktop\proj\UltimaTentativa\node_modules\glob\sync.js:132:10) at GlobSync._processGlobStar (C:\Users\Master\Desktop\proj\UltimaTentativa\node_modules\glob\sync.js:380:10) at GlobSync._process (C:\Users\Master\Desktop\proj\UltimaTentativa\node_modules\glob\sync.js:130:10) at GlobSync._processGlobStar (C:\Users\Master\Desktop\proj\UltimaTentativa\node_modules\glob\sync.js:383:10) at GlobSync._process (C:\Users\Master\Desktop\proj\UltimaTentativa\node_modules\glob\sync.js:130:10)
^

FAILURE: Build failed with an exception.

Where:
Script 'C:\Users\Master\Desktop\proj\UltimaTentativa\node_modules\@react-native-community\cli-platform-android\native_modules.gradle' line: 200
What went wrong:
A problem occurred evaluating script.

Failed to parse React Native CLI configuration. Expected running 'npx.cmd --quiet --no-install react-native config' command from 'C:\Users\Master\Desktop\proj\UltimaTentativa' directory to output valid JSON, but it didn't. This may be caused by npx resolving to a legacy global react-native binary. Please make sure to uninstall any global 'react-native' binaries: 'npm uninstall -g react-native react-native-cli' and try again
Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
Get more help at https://help.gradle.org

BUILD FAILED in 3s

error Failed to install the app. Make sure you have the Android development environment set up: https://facebook.github.io/react-native/docs/getting-started.html#android-development-environment. Run CLI with --verbose flag for more details.
Error: Command failed: gradlew.bat app:installDebug -PreactNativeDevServerPort=8081
:ReactNative:Failed to parse React Native CLI configuration: groovy.json.JsonException: Unable to determine the current character, it is not a string, number, array, or object

FAILURE: Build failed with an exception.

Where:
Script 'C:\Users\Master\Desktop\proj\UltimaTentativa\node_modules\@react-native-community\cli-platform-android\native_modules.gradle' line: 200
What went wrong:
A problem occurred evaluating script.

Failed to parse React Native CLI configuration. Expected running 'npx.cmd --quiet --no-install react-native config' command from 'C:\Users\Master\Desktop\proj\UltimaTentativa' directory to output valid JSON, but it didn't. This may be caused by npx resolving to a legacy global react-native binary. Please make sure to uninstall any global 'react-native' binaries: 'npm uninstall -g react-native react-native-cli' and try again
Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
Get more help at https://help.gradle.org

BUILD FAILED in 3s

at checkExecSyncError (child_process.js:621:11)
at execFileSync (child_process.js:639:15)
at runOnAllDevices (C:\Users\Master\Desktop\proj\UltimaTentativa\node_modules\@react-native-community\cli-platform-android\build\commands\runAndroid\runOnAllDevices.js:94:39)
at buildAndRun (C:\Users\Master\Desktop\proj\UltimaTentativa\node_modules\@react-native-community\cli-platform-android\build\commands\runAndroid\index.js:158:41)
at C:\Users\Master\Desktop\proj\UltimaTentativa\node_modules\@react-native-community\cli-platform-android\build\commands\runAndroid\index.js:125:12
at processTicksAndRejections (internal/process/task_queues.js:85:5)
at async Command.handleAction (C:\Users\Master\Desktop\proj\UltimaTentativa\node_modules\react-native\node_modules\@react-native-community\cli\build\index.js:164:9)

Reproducible Demo

autolink bug report needs repro

Source

fabiocosta88

Most helpful comment

Just removed the build folder inside android and go to android folder and then in powershell typed ./gradlew clean and then cd.. => npx react-native run-android

lucasluca on 29 Jan 2020

🎉3 🚀2 👍1

All 22 comments

I'm seeing this too - RN 0.61.4

bneigher on 23 Nov 2019

Doing this: https://harrymoreno.com/2019/10/25/troubleshooting-react-native-androidx.html#upgrading-gradle seems to work for me

bneigher on 23 Nov 2019

@fabiocosta88, can you run

npx.cmd --quiet --no-install react-native config'

from C:\Users\Master\Desktop\proj\UltimaTentativa

and paste the output?

I wonder why Gradle says the JSON is invalid. Something must be wrong here and we need to get a reproduction to fix it for you and others!

Thanks for your collaboration

grabbou on 24 Nov 2019

👍1

it looks like, it is a permission issue

Error: EPERM: operation not permitted, scandir

check if you have permission to write in this folder

sibelius on 26 Nov 2019

I'm facing a similar issue on MacOS.
Not sure if this is related, but the error is also saying Failed to parse React Native CLI configuration.

I tried creating a new project from scratch.

This is working

npx react-native init AwesomeProject --version 0.60.0
npx react-native run-android

This is not

npx react-native init AwesomeProject
npx react-native run-android

Error: Command failed: ./gradlew app:installDebug -PreactNativeDevServerPort=8081
:ReactNative:Failed to parse React Native CLI configuration: groovy.json.JsonException: Unable to determine the current character, it is not a string, number, array, or object

The current character read is 'i' with an int value of 105
Unable to determine the current character, it is not a string, number, array, or object
line number 1
index number 0
info Run "react-native --help" to see a list of all available commands.
^

FAILURE: Build failed with an exception.

pasine on 26 Nov 2019

Guys I just came back a backup that I had ... I don't know about the source of the error, but in this backup I just redid everything the same before and I didn't see the error again.

fabiocosta88 on 26 Nov 2019

Any fix for this found yet?

sagargulati on 5 Dec 2019

Same issue here!

fgagneten on 28 Dec 2019

It worked for me doing this:

https://stackoverflow.com/a/59507720/6421759

fgagneten on 28 Dec 2019

This sounds like something we should fix really quick.

:ReactNative:Failed to parse React Native CLI configuration: groovy.json.JsonException: Unable to determine the current character, it is not a string, number, array, or object

The error is rather verbose.

Can you email me the configuration? @pasine

Without a configuration that's leading to an error, there's not much we can do.

grabbou on 13 Jan 2020

@grabbou Is...solved?

croson on 16 Jan 2020

I'm having the same issue, it's a project generated by igniter.

This sounds like something we should fix really quick.

:ReactNative:Failed to parse React Native CLI configuration: groovy.json.JsonException: Unable to determine the current character, it is not a string, number, array, or object

The error is rather verbose.

Can you email me the configuration? @pasine

Without a configuration that's leading to an error, there's not much we can do.

Hope this (output from npx --quiet --no-install react-native config) would help. I redacted some paths to not reveal my personal info

{
  "root": "<path_to_project>",
  "reactNativePath": "<path_to_project>/node_modules/react-native",
  "dependencies": {
    "@react-native-community/async-storage": {
      "root": "<path_to_project>/node_modules/@react-native-community/async-storage",
      "name": "@react-native-community/async-storage",
      "platforms": {
        "ios": {
          "sourceDir": "<path_to_project>/node_modules/@react-native-community/async-storage/ios",
          "folder": "<path_to_project>/node_modules/@react-native-community/async-storage",
          "pbxprojPath": "<path_to_project>/node_modules/@react-native-community/async-storage/ios/RNCAsyncStorage.xcodeproj/project.pbxproj",
          "podfile": null,
          "podspecPath": "<path_to_project>/node_modules/@react-native-community/async-storage/RNCAsyncStorage.podspec",
          "projectPath": "<path_to_project>/node_modules/@react-native-community/async-storage/ios/RNCAsyncStorage.xcodeproj",
          "projectName": "RNCAsyncStorage.xcodeproj",
          "libraryFolder": "Libraries",
          "sharedLibraries": [],
          "plist": [],
          "scriptPhases": []
        },
        "android": {
          "sourceDir": "<path_to_project>/node_modules/@react-native-community/async-storage/android",
          "folder": "<path_to_project>/node_modules/@react-native-community/async-storage",
          "packageImportPath": "import com.reactnativecommunity.asyncstorage.AsyncStoragePackage;",
          "packageInstance": "new AsyncStoragePackage()"
        }
      },
      "assets": [],
      "hooks": {},
      "params": []
    },
    "@react-native-community/masked-view": {
      "root": "<path_to_project>/node_modules/@react-native-community/masked-view",
      "name": "@react-native-community/masked-view",
      "platforms": {
        "ios": {
          "sourceDir": "<path_to_project>/node_modules/@react-native-community/masked-view/ios",
          "folder": "<path_to_project>/node_modules/@react-native-community/masked-view",
          "pbxprojPath": "<path_to_project>/node_modules/@react-native-community/masked-view/ios/RNCMaskedView.xcodeproj/project.pbxproj",
          "podfile": null,
          "podspecPath": "<path_to_project>/node_modules/@react-native-community/masked-view/RNCMaskedView.podspec",
          "projectPath": "<path_to_project>/node_modules/@react-native-community/masked-view/ios/RNCMaskedView.xcodeproj",
          "projectName": "RNCMaskedView.xcodeproj",
          "libraryFolder": "Libraries",
          "sharedLibraries": [],
          "plist": [],
          "scriptPhases": []
        },
        "android": {
          "sourceDir": "<path_to_project>/node_modules/@react-native-community/masked-view/android",
          "folder": "<path_to_project>/node_modules/@react-native-community/masked-view",
          "packageImportPath": "import org.reactnative.maskedview.RNCMaskedViewPackage;",
          "packageInstance": "new RNCMaskedViewPackage()"
        }
      },
      "assets": [],
      "hooks": {},
      "params": []
    },
    "react-native-gesture-handler": {
      "root": "<path_to_project>/node_modules/react-native-gesture-handler",
      "name": "react-native-gesture-handler",
      "platforms": {
        "ios": {
          "sourceDir": "<path_to_project>/node_modules/react-native-gesture-handler/ios",
          "folder": "<path_to_project>/node_modules/react-native-gesture-handler",
          "pbxprojPath": "<path_to_project>/node_modules/react-native-gesture-handler/ios/RNGestureHandler.xcodeproj/project.pbxproj",
          "podfile": null,
          "podspecPath": "<path_to_project>/node_modules/react-native-gesture-handler/RNGestureHandler.podspec",
          "projectPath": "<path_to_project>/node_modules/react-native-gesture-handler/ios/RNGestureHandler.xcodeproj",
          "projectName": "RNGestureHandler.xcodeproj",
          "libraryFolder": "Libraries",
          "sharedLibraries": [],
          "plist": [],
          "scriptPhases": []
        },
        "android": {
          "sourceDir": "<path_to_project>/node_modules/react-native-gesture-handler/android",
          "folder": "<path_to_project>/node_modules/react-native-gesture-handler",
          "packageImportPath": "import com.swmansion.gesturehandler.react.RNGestureHandlerPackage;",
          "packageInstance": "new RNGestureHandlerPackage()"
        }
      },
      "assets": [],
      "hooks": {},
      "params": []
    },
    "react-native-keychain": {
      "root": "<path_to_project>/node_modules/react-native-keychain",
      "name": "react-native-keychain",
      "platforms": {
        "ios": {
          "sourceDir": "<path_to_project>/node_modules/react-native-keychain",
          "folder": "<path_to_project>/node_modules/react-native-keychain",
          "pbxprojPath": "<path_to_project>/node_modules/react-native-keychain/RNKeychain.xcodeproj/project.pbxproj",
          "podfile": null,
          "podspecPath": "<path_to_project>/node_modules/react-native-keychain/RNKeychain.podspec",
          "projectPath": "<path_to_project>/node_modules/react-native-keychain/RNKeychain.xcodeproj",
          "projectName": "RNKeychain.xcodeproj",
          "libraryFolder": "Libraries",
          "sharedLibraries": [],
          "plist": [],
          "scriptPhases": []
        },
        "android": {
          "sourceDir": "<path_to_project>/node_modules/react-native-keychain/android",
          "folder": "<path_to_project>/node_modules/react-native-keychain",
          "packageImportPath": "import com.oblador.keychain.KeychainPackage;",
          "packageInstance": "new KeychainPackage()"
        }
      },
      "assets": [],
      "hooks": {},
      "params": []
    },
    "react-native-localize": {
      "root": "<path_to_project>/node_modules/react-native-localize",
      "name": "react-native-localize",
      "platforms": {
        "ios": {
          "sourceDir": "<path_to_project>/node_modules/react-native-localize/ios",
          "folder": "<path_to_project>/node_modules/react-native-localize",
          "pbxprojPath": "<path_to_project>/node_modules/react-native-localize/ios/RNLocalize.xcodeproj/project.pbxproj",
          "podfile": null,
          "podspecPath": "<path_to_project>/node_modules/react-native-localize/RNLocalize.podspec",
          "projectPath": "<path_to_project>/node_modules/react-native-localize/ios/RNLocalize.xcodeproj",
          "projectName": "RNLocalize.xcodeproj",
          "libraryFolder": "Libraries",
          "sharedLibraries": [],
          "plist": [],
          "scriptPhases": []
        },
        "android": {
          "sourceDir": "<path_to_project>/node_modules/react-native-localize/android",
          "folder": "<path_to_project>/node_modules/react-native-localize",
          "packageImportPath": "import com.reactcommunity.rnlocalize.RNLocalizePackage;",
          "packageInstance": "new RNLocalizePackage()"
        }
      },
      "assets": [],
      "hooks": {},
      "params": []
    },
    "react-native-safe-area-context": {
      "root": "<path_to_project>/node_modules/react-native-safe-area-context",
      "name": "react-native-safe-area-context",
      "platforms": {
        "ios": {
          "sourceDir": "<path_to_project>/node_modules/react-native-safe-area-context/ios",
          "folder": "<path_to_project>/node_modules/react-native-safe-area-context",
          "pbxprojPath": "<path_to_project>/node_modules/react-native-safe-area-context/ios/SafeAreaView.xcodeproj/project.pbxproj",
          "podfile": null,
          "podspecPath": "<path_to_project>/node_modules/react-native-safe-area-context/react-native-safe-area-context.podspec",
          "projectPath": "<path_to_project>/node_modules/react-native-safe-area-context/ios/SafeAreaView.xcodeproj",
          "projectName": "SafeAreaView.xcodeproj",
          "libraryFolder": "Libraries",
          "sharedLibraries": [],
          "plist": [],
          "scriptPhases": []
        },
        "android": {
          "sourceDir": "<path_to_project>/node_modules/react-native-safe-area-context/android",
          "folder": "<path_to_project>/node_modules/react-native-safe-area-context",
          "packageImportPath": "import com.th3rdwave.safeareacontext.SafeAreaContextPackage;",
          "packageInstance": "new SafeAreaContextPackage()"
        }
      },
      "assets": [],
      "hooks": {},
      "params": []
    },
    "react-native-screens": {
      "root": "<path_to_project>/node_modules/react-native-screens",
      "name": "react-native-screens",
      "platforms": {
        "ios": {
          "sourceDir": "<path_to_project>/node_modules/react-native-screens/ios",
          "folder": "<path_to_project>/node_modules/react-native-screens",
          "pbxprojPath": "<path_to_project>/node_modules/react-native-screens/ios/RNScreens.xcodeproj/project.pbxproj",
          "podfile": null,
          "podspecPath": "<path_to_project>/node_modules/react-native-screens/RNScreens.podspec",
          "projectPath": "<path_to_project>/node_modules/react-native-screens/ios/RNScreens.xcodeproj",
          "projectName": "RNScreens.xcodeproj",
          "libraryFolder": "Libraries",
          "sharedLibraries": [],
          "plist": [],
          "scriptPhases": []
        },
        "android": {
          "sourceDir": "<path_to_project>/node_modules/react-native-screens/android",
          "folder": "<path_to_project>/node_modules/react-native-screens",
          "packageImportPath": "import com.swmansion.rnscreens.RNScreensPackage;",
          "packageInstance": "new RNScreensPackage()"
        }
      },
      "assets": [],
      "hooks": {},
      "params": []
    },
    "react-native-splash-screen": {
      "root": "<path_to_project>/node_modules/react-native-splash-screen",
      "name": "react-native-splash-screen",
      "platforms": {
        "ios": {
          "sourceDir": "<path_to_project>/node_modules/react-native-splash-screen/ios",
          "folder": "<path_to_project>/node_modules/react-native-splash-screen",
          "pbxprojPath": "<path_to_project>/node_modules/react-native-splash-screen/ios/SplashScreen.xcodeproj/project.pbxproj",
          "podfile": null,
          "podspecPath": "<path_to_project>/node_modules/react-native-splash-screen/react-native-splash-screen.podspec",
          "projectPath": "<path_to_project>/node_modules/react-native-splash-screen/ios/SplashScreen.xcodeproj",
          "projectName": "SplashScreen.xcodeproj",
          "libraryFolder": "Libraries",
          "sharedLibraries": [],
          "plist": [],
          "scriptPhases": []
        },
        "android": {
          "sourceDir": "<path_to_project>/node_modules/react-native-splash-screen/android",
          "folder": "<path_to_project>/node_modules/react-native-splash-screen",
          "packageImportPath": "import org.devio.rn.splashscreen.SplashScreenReactPackage;",
          "packageInstance": "new SplashScreenReactPackage()"
        }
      },
      "assets": [],
      "hooks": {},
      "params": []
    }
  },
  "commands": [
    {
      "name": "log-ios",
      "description": "starts iOS device syslog tail"
    },
    {
      "name": "run-ios",
      "description": "builds your app and starts it on iOS simulator",
      "examples": [
        {
          "desc": "Run on a different simulator, e.g. iPhone 5",
          "cmd": "react-native run-ios --simulator \"iPhone 5\""
        },
        {
          "desc": "Pass a non-standard location of iOS directory",
          "cmd": "react-native run-ios --project-path \"./app/ios\""
        },
        {
          "desc": "Run on a connected device, e.g. Max's iPhone",
          "cmd": "react-native run-ios --device \"Max's iPhone\""
        },
        {
          "desc": "Run on the AppleTV simulator",
          "cmd": "react-native run-ios --simulator \"Apple TV\"  --scheme \"helloworld-tvOS\""
        }
      ],
      "options": [
        {
          "name": "--simulator [string]",
          "description": "Explicitly set simulator to use. Optionally include iOS version betweenparenthesis at the end to match an exact version: \"iPhone 6 (10.0)\"",
          "default": "iPhone 11"
        },
        {
          "name": "--configuration [string]",
          "description": "Explicitly set the scheme configuration to use",
          "default": "Debug"
        },
        {
          "name": "--scheme [string]",
          "description": "Explicitly set Xcode scheme to use"
        },
        {
          "name": "--project-path [string]",
          "description": "Path relative to project root where the Xcode project (.xcodeproj) lives.",
          "default": "ios"
        },
        {
          "name": "--device [string]",
          "description": "Explicitly set device to use by name.  The value is not required if you have a single device connected."
        },
        {
          "name": "--udid [string]",
          "description": "Explicitly set device to use by udid"
        },
        {
          "name": "--no-packager",
          "description": "Do not launch packager while building"
        },
        {
          "name": "--verbose",
          "description": "Do not use xcpretty even if installed"
        },
        {
          "name": "--port [number]",
          "default": 8081
        },
        {
          "name": "--terminal [string]",
          "description": "Launches the Metro Bundler in a new window using the specified terminal path."
        }
      ]
    },
    {
      "name": "log-android",
      "description": "starts logkitty"
    },
    {
      "name": "run-android",
      "description": "builds your app and starts it on a connected Android emulator or device",
      "options": [
        {
          "name": "--root [string]",
          "description": "Override the root directory for the android build (which contains the android directory)",
          "default": ""
        },
        {
          "name": "--variant [string]",
          "description": "Specify your app's build variant",
          "default": "debug"
        },
        {
          "name": "--appFolder [string]",
          "description": "Specify a different application folder name for the android source. If not, we assume is \"app\"",
          "default": "app"
        },
        {
          "name": "--appId [string]",
          "description": "Specify an applicationId to launch after build.",
          "default": ""
        },
        {
          "name": "--appIdSuffix [string]",
          "description": "Specify an applicationIdSuffix to launch after build.",
          "default": ""
        },
        {
          "name": "--main-activity [string]",
          "description": "Name of the activity to start",
          "default": "MainActivity"
        },
        {
          "name": "--deviceId [string]",
          "description": "builds your app and starts it on a specific device/simulator with the given device id (listed by running \"adb devices\" on the command line)."
        },
        {
          "name": "--no-packager",
          "description": "Do not launch packager while building"
        },
        {
          "name": "--port [number]",
          "default": 8081
        },
        {
          "name": "--terminal [string]",
          "description": "Launches the Metro Bundler in a new window using the specified terminal path."
        },
        {
          "name": "--tasks [list]",
          "description": "Run custom Gradle tasks. By default it's \"installDebug\""
        },
        {
          "name": "--no-jetifier",
          "description": "Do not run \"jetifier\" – the AndroidX transition tool. By default it runs before Gradle to ease working with libraries that don't support AndroidX yet. See more at: https://www.npmjs.com/package/jetifier.",
          "default": false
        }
      ]
    }
  ],
  "assets": [
    "<path_to_project>/app/theme/fonts/Montserrat-Black.ttf",
    "<path_to_project>/app/theme/fonts/Montserrat-BlackItalic.ttf",
    "<path_to_project>/app/theme/fonts/Montserrat-Bold.ttf",
    "<path_to_project>/app/theme/fonts/Montserrat-BoldItalic.ttf",
    "<path_to_project>/app/theme/fonts/Montserrat-ExtraBold.ttf",
    "<path_to_project>/app/theme/fonts/Montserrat-ExtraBoldItalic.ttf",
    "<path_to_project>/app/theme/fonts/Montserrat-ExtraLight.ttf",
    "<path_to_project>/app/theme/fonts/Montserrat-ExtraLightItalic.ttf",
    "<path_to_project>/app/theme/fonts/Montserrat-Italic.ttf",
    "<path_to_project>/app/theme/fonts/Montserrat-Light.ttf",
    "<path_to_project>/app/theme/fonts/Montserrat-LightItalic.ttf",
    "<path_to_project>/app/theme/fonts/Montserrat-Medium.ttf",
    "<path_to_project>/app/theme/fonts/Montserrat-MediumItalic.ttf",
    "<path_to_project>/app/theme/fonts/Montserrat-Regular.ttf",
    "<path_to_project>/app/theme/fonts/Montserrat-SemiBold.ttf",
    "<path_to_project>/app/theme/fonts/Montserrat-SemiBoldItalic.ttf",
    "<path_to_project>/app/theme/fonts/Montserrat-Thin.ttf",
    "<path_to_project>/app/theme/fonts/Montserrat-ThinItalic.ttf"
  ],
  "platforms": {
    "ios": {},
    "android": {}
  },
  "haste": {
    "providesModuleNodeModules": [
      "react-native"
    ],
    "platforms": [
      "ios",
      "android"
    ]
  },
  "project": {
    "ios": {
      "sourceDir": "<path_to_project>/ios",
      "folder": "<path_to_project>",
      "pbxprojPath": "<path_to_project>/ios/rNativeTest.xcodeproj/project.pbxproj",
      "podfile": "<path_to_project>/ios/Podfile",
      "podspecPath": null,
      "projectPath": "<path_to_project>/ios/rNativeTest.xcodeproj",
      "projectName": "rNativeTest.xcodeproj",
      "libraryFolder": "Libraries",
      "sharedLibraries": [],
      "plist": [],
      "scriptPhases": []
    },
    "android": {
      "sourceDir": "<path_to_project>/android/app",
      "isFlat": false,
      "folder": "<path_to_project>",
      "stringsPath": "<path_to_project>/android/app/src/main/res/values/strings.xml",
      "manifestPath": "<path_to_project>/android/app/src/main/AndroidManifest.xml",
      "buildGradlePath": "<path_to_project>/android/app/build.gradle",
      "settingsGradlePath": "<path_to_project>/android/settings.gradle",
      "assetsPath": "<path_to_project>/android/app/src/main/assets",
      "mainFilePath": "<path_to_project>/android/app/src/main/java/com/rnativetest/MainApplication.java",
      "packageName": "com.rnativetest"
    }
  }
}

nmasnadithya on 16 Jan 2020

delete the files it was finding error as "The current character read is 'E' with an int value of 69"
Deleting app\buildintermediates\signing_config\debug\out\signing-config.json
worked for me.

tusharsinghal1610 on 17 Jan 2020

👍3 😄1

I had this same issue and nothing seemed to work for me until I found the signing-config file in "\android\app\buildintermediates\signing_config\debug\out" and changed the permissions to allow all users in Windows to modify the file. Once done everything worked like a charm for me. Hope this helps!

sewardj1011 on 21 Jan 2020

It is really strange. I am going to pin this to "known issues" until we figure out a better strategy on how to move further.

Not really sure why signing configuration (and its permissions) would be an issue here. We're shipping better error messages for this one, hopefully it helps to find the root cause.

grabbou on 29 Jan 2020

I can't really reproduce this locally, so we're going to ship a better error message that actually prints the output of the command that we are unable to parse.

That way, we will see where does it actually fail.

grabbou on 29 Jan 2020

I have released a 3.0.5-alpha.0 of the CLI.

Please use Yarn resolutions mechanism to overwrite the version you have and let me know what is the error message you're getting. I appreciate your help!

grabbou on 29 Jan 2020

Just removed the build folder inside android and go to android folder and then in powershell typed ./gradlew clean and then cd.. => npx react-native run-android

lucasluca on 29 Jan 2020

🎉3 🚀2 👍1

I have the same issue.
I created a new App after the previous one had the same issue now this guy is throwing the same issue too.

traxx10 on 19 Feb 2020

902 related?

ShaMan123 on 5 Mar 2020

This is one of the few errors connected to the same problem, and we already have duplicate issues around it. We've been tackling this from few sides recently and we believe it's fixed now.
Please update the @react-native-community/cli to the latest version.

thymikee on 11 Mar 2020

I solved by checking AndroidManifest.xml and solving the errors there.
Basically there has the error in my case.
and also deleted node_modules and run