Essentials: ProGuard enabled crashes Android app

Created on 21 Sep 2018  路  10Comments  路  Source: xamarin/Essentials

Description

After consuming the Xamarin.Essentials NuGet package my Android app crashes during start up.

Steps to Reproduce

The problem can be reproduced with the Samples.Android project in this repository.
To reproduce, check "Enable ProGuard" in the Release configuration and try starting the app in release mode.

Expected Behavior

App starts

Actual Behavior

App crashes

Basic Information

  • Version with issue: 0.10.0-preview
  • IDE: Visual Studio Professional for Windows 15.7.6
  • Platform Target Frameworks:

    • Android: 8.1

picture JaccoDieleman
👍1

Most helpful comment

I have the following:

```
-dontwarn android.support.*
-keep public class android.support.v7.widget.* { *; }
````

picture jamesmontemagno on 1 Oct 2018
👍2

All 10 comments

you should added output window with stacktrace information. I am also using proguard and full linking but no problem so far. you may include the apis you are accessing. it could be related to one of them as well.

EmilAlipiev picture EmilAlipiev on 21 Sep 2018

@EmilAlipiev I'm trying to use GeoLocation. The app however crashes before it tries to use GeoLocation, it crashes while the splashScreen is being shown. The SampleApp from this repo uses all apis and has the same behavior.

I don't get a stacktrace in Visual Studio. However, this is what I picked from the device log:
Time Device Name Type PID Tag Message 09-24 09:19:52.634 LGE Nexus 5X Error 23888 AndroidRuntime Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v7.widget.FitWindowsFrameLayout" on path: DexPathList[[zip file "/data/app/com.easysystems.easyexpense-XygxF7LxfTqJsFStVPWJYg==/base.apk"],nativeLibraryDirectories=[/data/app/com.easysystems.easyexpense-XygxF7LxfTqJsFStVPWJYg==/lib/arm, /data/app/com.easysystems.easyexpense-XygxF7LxfTqJsFStVPWJYg==/base.apk!/lib/armeabi-v7a, /system/lib, /vendor/lib]] at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:125) at java.lang.ClassLoader.loadClass(ClassLoader.java:379) at java.lang.ClassLoader.loadClass(ClassLoader.java:312) at android.view.LayoutInflater.createView(LayoutInflater.java:606) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:790) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:730) at android.view.LayoutInflater.inflate(LayoutInflater.java:492) at android.view.LayoutInflater.inflate(LayoutInflater.java:423) at android.view.LayoutInflater.inflate(LayoutInflater.java:374) at android.support.v7.app.AppCompatDelegateImplV9.createSubDecor(AppCompatDelegateImplV9.java:427) at android.support.v7.app.AppCompatDelegateImplV9.ensureSubDecor(AppCompatDelegateImplV9.java:323) at android.support.v7.app.AppCompatDelegateImplV9.initWindowDecorActionBar(AppCompatDelegateImplV9.java:175) at android.support.v7.app.AppCompatDelegateImplBase.getSupportActionBar(AppCompatDelegateImplBase.java:145) at android.support.v7.app.AppCompatDelegateImplV9.setSupportActionBar(AppCompatDelegateImplV9.java:199) at android.support.v7.app.AppCompatActivity.setSupportActionBar(AppCompatActivity.java:129) at md5fc62b2e4833275b110f05a96ae4ffc8c.MainActivity.n_onCreate(Native Method) at md5fc62b2e4833275b110f05a96ae4ffc8c.MainActivity.onCreate(MainActivity.java:32) at android.app.Activity.performCreate(Activity.java:7009) at android.app.Activity.performCreate(Activity.java:7000) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1214) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2731) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856) at android.app.ActivityThread.-wrap11(Unknown Source:0) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6494) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807) Force finishing activity com.easysystems.easyexpense/md5fc62b2e4833275b110f05a96ae4ffc8c.MainActivity 09-24 09:19:52.634 LGE Nexus 5X Error 23888 AndroidRuntime Caused by: android.view.InflateException: Binary XML file line #20: Error inflating class android.support.v7.widget.FitWindowsFrameLayout 09-24 09:19:52.634 LGE Nexus 5X Error 23888 AndroidRuntime FATAL EXCEPTION: main 09-24 09:19:52.634 LGE Nexus 5X Error 23888 AndroidRuntime Process: com.easysystems.easyexpense, PID: 23888 09-24 09:19:52.634 LGE Nexus 5X Error 23888 AndroidRuntime Caused by: android.view.InflateException: Binary XML file line #20: Binary XML file line #20: Error inflating class android.support.v7.widget.FitWindowsFrameLayout 09-24 09:19:52.634 LGE Nexus 5X Debug 23888 AndroidRuntime Shutting down VM 09-24 09:19:52.634 LGE Nexus 5X Error 23888 AndroidRuntime java.lang.RuntimeException: Unable to start activity ComponentInfo{com.easysystems.easyexpense/md5fc62b2e4833275b110f05a96ae4ffc8c.MainActivity}: android.view.InflateException: Binary XML file line #20: Binary XML file line #20: Error inflating class android.support.v7.widget.FitWindowsFrameLayout at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2778) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856) at android.app.ActivityThread.-wrap11(Unknown Source:0) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6494) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807) 09-24 09:19:52.542 LGE Nexus 5X Info 23888 MonoDroid Caused by: android.view.InflateException: Binary XML file line #20: Error inflating class android.support.v7.widget.FitWindowsFrameLayout 09-24 09:19:52.542 LGE Nexus 5X Info 23888 MonoDroid Java.Lang.RuntimeException: Binary XML file line #20: Binary XML file line #20: Error inflating class android.support.v7.widget.FitWindowsFrameLayout ---> Java.Lang.RuntimeException: Binary XML file line #20: Error inflating class android.support.v7.widget.FitWindowsFrameLayout ---> Java.Lang.ClassNotFoundException: Didn't find class "android.support.v7.widget.FitWindowsFrameLayout" on path: DexPathList[[zip file "/data/app/com.easysystems.easyexpense-XygxF7LxfTqJsFStVPWJYg==/base.apk"],nativeLibraryDirectories=[/data/app/com.easysystems.easyexpense-XygxF7LxfTqJsFStVPWJYg==/lib/arm, /data/app/com.easysystems.easyexpense-XygxF7LxfTqJsFStVPWJYg==/base.apk!/lib/armeabi-v7a, /system/lib, /vendor/lib]] --- End of inner exception stack trace --- --- End of inner exception stack trace --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in <0f86d47be861485fa949889ca70ebae9>:0 at Java.Interop.JniEnvironment+InstanceMethods.CallNonvirtualVoidMethod (Java.Interop.JniObjectReference instance, Java.Interop.JniObjectReference type, Java.Interop.JniMethodInfo method, Java.Interop.JniArgumentValue* args) [0x00089] in <8bce811bfb4b405f86a7c1961bca2723>:0 at Java.Interop.JniPeerMembers+JniInstanceMethods.InvokeVirtualVoidMethod (System.String encodedMember, Java.Interop.IJavaPeerable self, Java.Interop.JniArgumentValue* parameters) [0x0005d] in <8bce811bfb4b405f86a7c1961bca2723>:0 at Android.Support.V7.App.AppCompatActivity.SetSupportActionBar (Android.Support.V7.Widget.Toolbar toolbar) [0x00031] in <7391f96d58fa4d36af742b6a01b30831>:0 at Xamarin.Forms.Platform.Android.FormsAppCompatActivity.OnCreate (Android.OS.Bundle savedInstanceState) [0x00050] in <6b73296523894c3d8d57f5a8e3480a43>:0 at Rigger.Mobile.EasyExpense.Droid.MainActivity.OnCreate (Android.OS.Bundle savedInstanceState) [0x00092] in <d8190fc332b64effbf654f6784da817c>:0 at Android.App.Activity.n_OnCreate_Landroid_os_Bundle_ (System.IntPtr jnienv, System.IntPtr native__this, System.IntPtr native_savedInstanceState) [0x0000f] in <5e6198e7fa2140679cd48adc9971e757>:0 at (wrapper dynamic-method) System.Object.46bc58c1-5c50-4d5e-9bc0-28f8c6acde0f(intptr,intptr,intptr) --- End of managed Java.Lang.RuntimeException stack trace --- 09-24 09:19:52.542 LGE Nexus 5X Info 23888 MonoDroid Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v7.widget.FitWindowsFrameLayout" on path: DexPathList[[zip file "/data/app/com.easysystems.easyexpense-XygxF7LxfTqJsFStVPWJYg==/base.apk"],nativeLibraryDirectories=[/data/app/com.easysystems.easyexpense-XygxF7LxfTqJsFStVPWJYg==/lib/arm, /data/app/com.easysystems.easyexpense-XygxF7LxfTqJsFStVPWJYg==/base.apk!/lib/armeabi-v7a, /system/lib, /vendor/lib]] at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:125) at java.lang.ClassLoader.loadClass(ClassLoader.java:379) at java.lang.ClassLoader.loadClass(ClassLoader.java:312) at android.view.LayoutInflater.createView(LayoutInflater.java:606) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:790) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:730) at android.view.LayoutInflater.inflate(LayoutInflater.java:492) at android.view.LayoutInflater.inflate(LayoutInflater.java:423) at android.view.LayoutInflater.inflate(LayoutInflater.java:374) at android.support.v7.app.AppCompatDelegateImplV9.createSubDecor(AppCompatDelegateImplV9.java:427) at android.support.v7.app.AppCompatDelegateImplV9.ensureSubDecor(AppCompatDelegateImplV9.java:323) at android.support.v7.app.AppCompatDelegateImplV9.initWindowDecorActionBar(AppCompatDelegateImplV9.java:175) at android.support.v7.app.AppCompatDelegateImplBase.getSupportActionBar(AppCompatDelegateImplBase.java:145) at android.support.v7.app.AppCompatDelegateImplV9.setSupportActionBar(AppCompatDelegateImplV9.java:199) at android.support.v7.app.AppCompatActivity.setSupportActionBar(AppCompatActivity.java:129) at md5fc62b2e4833275b110f05a96ae4ffc8c.MainActivity.n_onCreate(Native Method) at md5fc62b2e4833275b110f05a96ae4ffc8c.MainActivity.onCreate(MainActivity.java:32) at android.app.Activity.performCreate(Activity.java:7009) at android.app.Activity.performCreate(Activity.java:7000) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1214) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2731) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856) at android.app.ActivityThread.-wrap11(Unknown Source:0) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6494) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807) 09-24 09:19:52.542 LGE Nexus 5X Info 23888 MonoDroid android.view.InflateException: Binary XML file line #20: Binary XML file line #20: Error inflating class android.support.v7.widget.FitWindowsFrameLayout 09-24 09:19:52.542 LGE Nexus 5X Info 23888 MonoDroid 09-24 09:19:52.505 LGE Nexus 5X Info 23888 MonoDroid UNHANDLED EXCEPTION: 09-24 09:19:52.444 LGE Nexus 5X Debug 23888 AppCenter Network available netId: 100 09-24 09:19:52.444 LGE Nexus 5X Debug 23888 AppCenter Available networks netIds: [107, 100] 09-24 09:19:52.443 LGE Nexus 5X Debug 23888 AppCenter Available networks netIds: [107] 09-24 09:19:52.443 LGE Nexus 5X Debug 23888 AppCenter Network available netId: 107 09-24 09:19:51.620 LGE Nexus 5X Warning 23888 monodroid Calling into managed runtime init 09-24 09:19:51.613 LGE Nexus 5X Warning 23888 monodroid-gc GREF GC Threshold: 46080 09-24 09:19:51.418 LGE Nexus 5X Warning 23888 monodroid Trying to load sgen from: /data/app/com.easysystems.easyexpense-XygxF7LxfTqJsFStVPWJYg==/lib/arm/libmonosgen-2.0.so 09-24 09:19:51.088 LGE Nexus 5X Debug 22268 ClClient Not sending keepalive. Current connection state=STOPPED 09-24 09:19:50.833 LGE Nexus 5X Info 3488 ActivityManager Start proc 23888:com.easysystems.easyexpense/u0a768 for activity com.easysystems.easyexpense/md5fc62b2e4833275b110f05a96ae4ffc8c.MainActivity 09-24 09:19:50.670 LGE Nexus 5X Info 3488 ActivityManager START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=com.easysystems.easyexpense/md5fc62b2e4833275b110f05a96ae4ffc8c.MainActivity} from uid 2000

JaccoDieleman picture JaccoDieleman on 24 Sep 2018
👍1

Does it work without progaurd option selected? Linking or link all should work just fine as we have that in our samples today.

Do you have your progaurd config? You may need to add some information there so items don't get removed.

jamesmontemagno picture jamesmontemagno on 24 Sep 2018

Looking at your error it looks like a general progaurd issue and not anything with essentials if essentials isn't even being run yet, but hard to know.

would need to see your progaurd file.

I would recommend reading: https://docs.microsoft.com/en-us/xamarin/android/deploy-test/release-prep/proguard?tabs=vswin

a sample I use for the evolve app: https://github.com/xamarinhq/app-conference/blob/master/src/Conference.Android/proguard.cfg

I am also interested into understanding why you need progaurd on for the app as it is usually an advanced scenario.

jamesmontemagno picture jamesmontemagno on 24 Sep 2018

@jamesmontemagno, to answer your questions:

  • Yes, it works without ProGuard. Besides, it also works with ProGuard while not linking.
  • I'm not using a custom ProGuard config, so I use the one bundled with the Xamarin.Android SDK (8.3.3.2). See below.
  • I wanted to use ProGuard because it is beneficial for size and performance of the app. The other consideration to use ProGuard is because of security. But now I'm not sure whether that would help because Obfuscation doesn't work for Xamarin.Android.
# This is Xamarin-specific (and enhanced) configuration.

-dontobfuscate

-keep class mono.MonoRuntimeProvider { *; <init>(...); }
-keep class mono.MonoPackageManager { *; <init>(...); }
-keep class mono.MonoPackageManager_Resources { *; <init>(...); }
-keep class mono.android.** { *; <init>(...); }
-keep class mono.java.** { *; <init>(...); }
-keep class mono.javax.** { *; <init>(...); }
-keep class opentk.platform.android.AndroidGameView { *; <init>(...); }
-keep class opentk.GameViewBase { *; <init>(...); }
-keep class opentk_1_0.platform.android.AndroidGameView { *; <init>(...); }
-keep class opentk_1_0.GameViewBase { *; <init>(...); }
-keep class com.xamarin.java_interop.ManagedPeer { *; <init>(...); }

-keep class android.runtime.** { <init>(***); }
-keep class assembly_mono_android.android.runtime.** { <init>(***); }
# hash for android.runtime and assembly_mono_android.android.runtime.
-keep class md52ce486a14f4bcd95899665e9d932190b.** { *; <init>(...); }
-keepclassmembers class md52ce486a14f4bcd95899665e9d932190b.** { *; <init>(...); }

# Android's template misses fluent setters...
-keepclassmembers class * extends android.view.View {
   *** set*(***);
}

# also misses those inflated custom layout stuff from xml...
-keepclassmembers class * extends android.view.View {
   <init>(android.content.Context,android.util.AttributeSet);
   <init>(android.content.Context,android.util.AttributeSet,int);
}
JaccoDieleman picture JaccoDieleman on 24 Sep 2018
👍1

Most likely you will have to add to your progaurd file additional items. I will try to get you a list and working config, but I would try some of what I used for evolve. I am thinking that this would be a problem with just a normal app without Essentials too. Can you try file-> new and see if you have issues without adding essentials.

jamesmontemagno picture jamesmontemagno on 29 Sep 2018
👍1

Looks like this is something with newer support libraries causing issues: https://github.com/xamarin/AndroidSupportComponents/issues/96

simply add: -keep public class android.support.v7.widget.** { *; }

I will add a progaurd file in the repo for reference!

jamesmontemagno picture jamesmontemagno on 1 Oct 2018
👍1

I have the following:

```
-dontwarn android.support.*
-keep public class android.support.v7.widget.* { *; }
````

jamesmontemagno picture jamesmontemagno on 1 Oct 2018
👍2

Also, you can use dotfuscator if you want to obfuscate

jamesmontemagno picture jamesmontemagno on 1 Oct 2018

Thanks! I can't get proguard to pick up the custom config right now, I'll try that later, after I read through to documentation.
+1 for the advice on obfuscation!

JaccoDieleman picture JaccoDieleman on 2 Oct 2018
👍1
Was this page helpful?
0 / 5 - 0 ratings

Related issues

TedMobile picture TedMobile  路  3Comments
MarkIvanDev picture MarkIvanDev  路  4Comments
tomas-dainovec picture tomas-dainovec  路  4Comments
craylward picture craylward  路  4Comments
ykoorb picture ykoorb  路  3Comments