leakcanary: LeakCanary crashing app on start: java.lang.AbstractMethodError: androidx.lifecycle.ViewModel

Description

Hello in our app we use LeakCanary library. We have recently upgraded gradle, kotlin gradle scripts to KTS, etc. Now when we build APK through Android Studio by “Generate Signed APK” or “Generate APKs” or in terminal by “gradlew assembleSomethingDebug” as Debug type it causing crash on start app. Once I remove the LeakCanary library from debugImplementation in build.gradle.kts. It will stop crashing.

Log:

  java.lang.AbstractMethodError: abstract method "androidx.lifecycle.ViewModel androidx.lifecycle.ViewModelProvider$Factory.create(java.lang.Class, androidx.lifecycle.viewmodel.CreationExtras)"
        at androidx.lifecycle.ViewModelProvider.get(ViewModelProvider.kt:168)
        at androidx.lifecycle.ViewModelProvider.get(ViewModelProvider.kt:137)
        at leakcanary.internal.ViewModelClearedWatcher$Companion.install(ViewModelClearedWatcher.kt:52)
        at leakcanary.internal.AndroidXFragmentDestroyWatcher.invoke(AndroidXFragmentDestroyWatcher.kt:66)
        at leakcanary.internal.AndroidXFragmentDestroyWatcher.invoke(AndroidXFragmentDestroyWatcher.kt:25)
        at leakcanary.FragmentAndViewModelWatcher$lifecycleCallbacks$1.onActivityCreated(FragmentAndViewModelWatcher.kt:59)
        at android.app.Application.dispatchActivityCreated(Application.java:353)
        at android.app.Activity.dispatchActivityCreated(Activity.java:1334)
        at android.app.Activity.onCreate(Activity.java:1607)
        at androidx.core.app.ComponentActivity.onCreate(ComponentActivity.java:85)
        at androidx.activity.ComponentActivity.onCreate(ComponentActivity.java:343)
        at androidx.fragment.app.FragmentActivity.onCreate(FragmentActivity.java:246)
        at com.ilab.spaceti.ui.base.BaseActivity.onCreate(BaseActivity.kt:99)

Version Information

LeakCanary version: 2.8.1
Android OS version: 12
Gradle version: 7.4
Android Gradle Plugin: 7.1.1

About this issue

Original URL
State: closed
Created 2 years ago
Reactions: 18
Comments: 15 (7 by maintainers)

Most upvoted comments

Lifecycle 2.5.0-rc02 will include a fix for this: https://android-review.googlesource.com/c/platform/frameworks/support/+/2108693

pyricau on Jun 10, 2022

This is absolutely not the right fix. LeakCanary should not declare an explicit dependency on lifecycle, the whole point of it being optional is that consumers can leverage whichever version they like or even not have that dependency and everything will work just fine. Lifecycle just broke backward compatibility.

pyricau on May 18, 2022

Same thing is happening for me also. But I could not understand the actual reason, but now i understand the reason and trying to find the solution. Removing the dependency is just a workaround.

vxplore on Apr 1, 2022