Mixpanel 5.9.3 org/jacoco/agent/rt/internal_8ff85ea/Offline

[jeorgearomal]

After updating to Mixpanel 5.9.3 we could observe the below error

Attaching the sample application (Mixpanel593.zip) which has only below changes

• build.gradle

implementation "com.mixpanel.android:mixpanel-android:5.9.3@aar"

• MainActivity.kt

MixpanelAPI.getInstance(this, "TEST")

The below issue is observed only with versions 5.9.2 and 5.9.3

2021-10-08 11:53:52.543 12344-12344/com.example.mixpanel593 E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.mixpanel593, PID: 12344
    java.lang.NoClassDefFoundError: Failed resolution of: Lorg/jacoco/agent/rt/internal_8ff85ea/Offline;
        at com.mixpanel.android.mpmetrics.MixpanelAPI.$jacocoInit(Unknown Source:13)
        at com.mixpanel.android.mpmetrics.MixpanelAPI.<clinit>(Unknown Source:0)
        at com.mixpanel.android.mpmetrics.MixpanelAPI.getInstance(Unknown Source:0)
        at com.example.mixpanel593.MainActivity.onCreate(MainActivity.kt:12)
        at android.app.Activity.performCreate(Activity.java:8051)
        at android.app.Activity.performCreate(Activity.java:8031)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1329)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3612)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3796)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:103)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2214)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loopOnce(Looper.java:201)
        at android.os.Looper.loop(Looper.java:288)
        at android.app.ActivityThread.main(ActivityThread.java:7842)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
     Caused by: java.lang.ClassNotFoundException: Didn't find class "org.jacoco.agent.rt.internal_8ff85ea.Offline" on path: DexPathList[[zip file "/data/app/~~VtYSpEsgpsmCZj1qvYPF8g==/com.example.mixpanel593-9e4dfOkKIsAFG2Nz6WGmjg==/base.apk"],nativeLibraryDirectories=[/data/app/~~VtYSpEsgpsmCZj1qvYPF8g==/com.example.mixpanel593-9e4dfOkKIsAFG2Nz6WGmjg==/lib/arm64, /system/lib64, /system_ext/lib64, /product/lib64]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:218)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
        at com.mixpanel.android.mpmetrics.MixpanelAPI.$jacocoInit(Unknown Source:13) 
        at com.mixpanel.android.mpmetrics.MixpanelAPI.<clinit>(Unknown Source:0) 
        at com.mixpanel.android.mpmetrics.MixpanelAPI.getInstance(Unknown Source:0) 
        at com.example.mixpanel593.MainActivity.onCreate(MainActivity.kt:12) 
        at android.app.Activity.performCreate(Activity.java:8051) 
        at android.app.Activity.performCreate(Activity.java:8031) 
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1329) 
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3612) 
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3796) 
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:103) 
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135) 
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2214) 
        at android.os.Handler.dispatchMessage(Handler.java:106) 
        at android.os.Looper.loopOnce(Looper.java:201) 
        at android.os.Looper.loop(Looper.java:288) 
        at android.app.ActivityThread.main(ActivityThread.java:7842) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003) 

[vishnumj-diagnal]

Facing the same issue, This works fine on 5.9.1

[anoopmaddasseri]

+1

[minhcn27]

+1

[gokul1408]

+1

[siddhesh-mmi]

+1

[Borutsky]

+1

[rlmax]

+1

[ganeshrvel]

+1

[hekui]

+1

[john-fk]

For mixpanel-flutter people that found this issue and this page ...
the current (temp) solution is to go to mixpanel-flutter library in your local machine, edit build.graddle to the last known working version

last lines

dependencies {
    implementation "com.mixpanel.android:mixpanel-android:5.9.1"
}

[troyshu]

Where would one find the build.gradle file for the mixpanel-flutter library locally? 😅

[ganeshrvel]

To fix non-null version of the mixpanel-flutter, use this pubspec value

  # Mixpanel
  mixpanel_flutter: #^1.0.1
    git:
      url: https://github.com/frontrow-tech/mixpanel-flutter
      ref: afc00bc6e66e46782953a6d42099b8f97d5ace3f

[zihejia]

The issue has been fixed in v5.9.4, please sync your gradle to upgrade to the latest. Sorry for the inconvenience. I'm closing this one now, but feel free to reopen it if the problem still exists.