Android Question B4XDrawer Error: Failed resolution of: LandroidX/arch/core/executor/archTaskExecutor

[John Isaac F. Castillo]

Good day everyone, I've tried searching the forum about the problem I'm having but no luck to find what's the solution.
I am trying to run the B4XDrawer made by Erel, and I am having trouble. The example project build successfully but it crashes after installing saying

java.lang.NoClassDefFoundError: Failed resolution of: Landroidx/arch/core/executor/ArchTaskExecutor;
    at androidx.lifecycle.LifecycleRegistry.enforceMainThreadIfNeeded(LifecycleRegistry.java:316)
    at androidx.lifecycle.LifecycleRegistry.addObserver(LifecycleRegistry.java:172)
    at androidx.activity.ComponentActivity.<init>(ComponentActivity.java:228)
    at androidx.fragment.app.FragmentActivity.<init>(FragmentActivity.java:103)
    at androidx.appcompat.app.AppCompatActivity.<init>(AppCompatActivity.java:87)
    at b4a.example.main.<init>(main.java:17)
    at java.lang.Class.newInstance(Native Method)
    at android.app.AppComponentFactory.instantiateActivity(AppComponentFactory.java:95)
    at android.app.Instrumentation.newActivity(Instrumentation.java:1251)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3222)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3459)
    at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83)
    at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2046)
    at android.os.Handler.dispatchMessage(Handler.java:107)
    at android.os.Looper.loop(Looper.java:225)
    at android.app.ActivityThread.main(ActivityThread.java:7564)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:539)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:950)
Caused by: java.lang.ClassNotFoundException: androidx.arch.core.executor.ArchTaskExecutor
    ... 21 more

but the log show it is working

beginning of crash
beginning of system
beginning of main

Thanks, testing it on Redmi Note 8, MIUI 12.0.3 Android 10

 

[Erel]

Run this example: https://www.b4x.com/android/forum/threads/b4x-b4xpages-b4xdrawer.120246/#content

Does it work?

Which path is set under Tools - Configure Paths - android.jar ?

 

[John Isaac F. Castillo]

Run this example: https://www.b4x.com/android/forum/threads/b4x-b4xpages-b4xdrawer.120246/#content

Does it work?

Which path is set under Tools - Configure Paths - android.jar ?

Thanks Erel, Yes that project does work but the project here inhttps://www.b4x.com/android/forum/threads/b4x-b4xdrawer-sliding-drawer.97828/
gives me an error, just wanted to open if that error is just here in my laptop,
However I've created my own project and it works.