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flutter app not launching in from release apk

 原文  2021-04-19 12:47:58  3   1    android/ flutter

Question

flutter app works just fine in android debug, ios debug and ios release. but with android release ( flutter build apk ) it just does not launch.

What I've tried:

  1. lowering the gradle version from 4.1.3 to 3.6.2 as suggested in here .

  2. running with no-shrink flag ( flutter build apk --no-shrink ).

  3. setting shrinkResources and minifyEnabled to false in android/app/build.gradle

HERE IS A VIDEO THAT SHOWS THE ERROR CLEARLY

this is my flutter doctor -v output:

[√] Flutter (Channel stable, 2.0.5, on Microsoft Windows [Version 10.0.19041.928], locale
    en-US)
    • Flutter version 2.0.5 at C:\Users\adnan\flutter
    • Framework revision adc687823a (3 days ago), 2021-04-16 09:40:20 -0700
    • Engine revision b09f014e96
    • Dart version 2.12.3
    • Pub download mirror https://pub.flutter-io.cn
    • Flutter download mirror https://storage.flutter-io.cn

[√] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
    • Android SDK at C:\Users\adnan\AppData\Local\Android\sdk
    • Platform android-30, build-tools 30.0.3
    • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
    • All Android licenses accepted.

[√] Chrome - develop for the web
    • Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

[√] Android Studio (version 4.1.0)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin can be installed from:
       https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
       https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)

[√] VS Code (version 1.55.2)
    • VS Code at C:\Users\adnan\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.21.0

[√] Connected device (3 available)
    • sdk gphone x86 (mobile) • emulator-5554 • android-x86    • Android 11 (API 30)
      (emulator)
    • Chrome (web)            • chrome        • web-javascript • Google Chrome 89.0.4389.128
    • Edge (web)              • edge          • web-javascript • Microsoft Edge 89.0.774.57

• No issues found!

edit: here is the error log from the android studio Logcat:

2021-04-20 09:58:24.300 6866-6866/? E/FlutterLoader: Flutter initialization failed.
    java.util.concurrent.ExecutionException: java.lang.UnsatisfiedLinkError: dlopen failed: library "libflutter.so" not found
        at java.util.concurrent.FutureTask.report(FutureTask.java:123)
        at java.util.concurrent.FutureTask.get(FutureTask.java:193)
        at io.flutter.embedding.engine.g.c.c(Unknown Source:23)
        at io.flutter.embedding.engine.a.<init>(Unknown Source:202)
        at io.flutter.embedding.engine.a.<init>(Unknown Source:16)
        at io.flutter.embedding.android.f.B(Unknown Source:106)
        at io.flutter.embedding.android.f.k(Unknown Source:7)
        at io.flutter.embedding.android.e.onCreate(Unknown Source:13)
        at com.myExampleApp.MainActivity.onCreate(Unknown Source:0)
        at android.app.Activity.performCreate(Activity.java:8000)
        at android.app.Activity.performCreate(Activity.java:7984)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1309)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3422)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:223)
        at android.app.ActivityThread.main(ActivityThread.java:7656)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
     Caused by: java.lang.UnsatisfiedLinkError: dlopen failed: library "libflutter.so" not found
        at java.lang.Runtime.loadLibrary0(Runtime.java:1087)
        at java.lang.Runtime.loadLibrary0(Runtime.java:1008)
        at java.lang.System.loadLibrary(System.java:1664)
        at io.flutter.embedding.engine.FlutterJNI.loadLibrary(Unknown Source:13)
        at io.flutter.embedding.engine.g.c$a.a(Unknown Source:14)
        at io.flutter.embedding.engine.g.c$a.call(Unknown Source:0)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.lang.Thread.run(Thread.java:923)
2021-04-20 09:58:24.300 6866-6866/? D/AndroidRuntime: Shutting down VM
    
    
    --------- beginning of crash
2021-04-20 09:58:24.301 6866-6866/? E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.myExampleApp, PID: 6866
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.myExampleApp/com.myExampleApp.MainActivity}: java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.UnsatisfiedLinkError: dlopen failed: library "libflutter.so" not found
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3449)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:223)
        at android.app.ActivityThread.main(ActivityThread.java:7656)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
     Caused by: java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.UnsatisfiedLinkError: dlopen failed: library "libflutter.so" not found
        at io.flutter.embedding.engine.g.c.c(Unknown Source:367)
        at io.flutter.embedding.engine.a.<init>(Unknown Source:202)
        at io.flutter.embedding.engine.a.<init>(Unknown Source:16)
        at io.flutter.embedding.android.f.B(Unknown Source:106)
        at io.flutter.embedding.android.f.k(Unknown Source:7)
        at io.flutter.embedding.android.e.onCreate(Unknown Source:13)
        at com.myExampleApp.MainActivity.onCreate(Unknown Source:0)
        at android.app.Activity.performCreate(Activity.java:8000)
        at android.app.Activity.performCreate(Activity.java:7984)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1309)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3422)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601) 
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85) 
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135) 
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066) 
        at android.os.Handler.dispatchMessage(Handler.java:106) 
        at android.os.Looper.loop(Looper.java:223) 
        at android.app.ActivityThread.main(ActivityThread.java:7656) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947) 
     Caused by: java.util.concurrent.ExecutionException: java.lang.UnsatisfiedLinkError: dlopen failed: library "libflutter.so" not found
        at java.util.concurrent.FutureTask.report(FutureTask.java:123)
        at java.util.concurrent.FutureTask.get(FutureTask.java:193)
        at io.flutter.embedding.engine.g.c.c(Unknown Source:23)
        at io.flutter.embedding.engine.a.<init>(Unknown Source:202) 
        at io.flutter.embedding.engine.a.<init>(Unknown Source:16) 
        at io.flutter.embedding.android.f.B(Unknown Source:106) 
        at io.flutter.embedding.android.f.k(Unknown Source:7) 
        at io.flutter.embedding.android.e.onCreate(Unknown Source:13) 
        at com.myExampleApp.MainActivity.onCreate(Unknown Source:0) 
        at android.app.Activity.performCreate(Activity.java:8000) 
        at android.app.Activity.performCreate(Activity.java:7984) 
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1309) 
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3422) 
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601) 
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85) 
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135) 
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066) 
        at android.os.Handler.dispatchMessage(Handler.java:106) 
        at android.os.Looper.loop(Looper.java:223) 
        at android.app.ActivityThread.main(ActivityThread.java:7656) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947) 
     Caused by: java.lang.UnsatisfiedLinkError: dlopen failed: library "libflutter.so" not found
        at java.lang.Runtime.loadLibrary0(Runtime.java:1087)
        at java.lang.Runtime.loadLibrary0(Runtime.java:1008)
        at java.lang.System.loadLibrary(System.java:1664)
        at io.flutter.embedding.engine.FlutterJNI.loadLibrary(Unknown Source:13)
        at io.flutter.embedding.engine.g.c$a.a(Unknown Source:14)
        at io.flutter.embedding.engine.g.c$a.call(Unknown Source:0)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.lang.Thread.run(Thread.java:923)
2021-04-20 09:58:24.308 519-5643/? W/ActivityTaskManager:   Force finishing activity com.myExampleApp/.MainActivity
2021-04-20 09:58:24.309 306-306/? W/EmuHWC2: validate: layer 37 CompositionType 1, fallback

(maybe duplicate of this )

1 answers

solution1
 1  2022-08-24 01:37:51

its a general flutter sdk and android architecture support issue as at now, waiting for a permanent fix....
but This abifilters solution solved the issue on emulator blue stacks emulating an LG phone for me.. Add the ndk code in the defaultConfig tag inside your build.gradle android file of your project

**

android {
    //...
    defaultConfig {
    ndk {
    // Filter for architectures supported by Flutter.
    abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86_64'
    }
    }
    }

**

Dont know if has drawbacks on other phones, but i will be updating this thread as we rollout and see which phones our customers who get same issues again are getting it on

Edit, Also Add lines below to the end of settings.gradle : file to filter more.. This code will generate file libflutter.so on folders x86_64, arm64-v8a and armeabi-v7a. And for devices x86, then emulate arm which are the devices with the problems..

gradle.beforeProject({ project->
    if (project.hasProperty("target-platform") &&
            !project.getProperty("target-platform").split(",").contains("android-arm")) {
        project.setProperty("target-platform", "android-arm,android-arm64")
    }
})

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