[Crash] Cannot access database on the main thread since it may potentially lock the UI for a long period of time.

[Nicholas Ventimiglia]

java.lang.IllegalStateException: Cannot access database on the main thread since it may potentially lock the UI for a long period of time.

To replicate

• Run the end Migration project
• Click on Add Plant
• Click on any plant
• click on the + button

 @Override
  public long insertGardenPlanting(final GardenPlanting gardenPlanting) {
    __db.assertNotSuspendingTransaction();
    __db.beginTransaction();
    try {
      final long _result = __insertionAdapterOfGardenPlanting.insertAndReturnId(gardenPlanting);
      __db.setTransactionSuccessful();
      return _result;
    } finally {
      __db.endTransaction();
    }
  }

FATAL EXCEPTION: main
Process: com.google.samples.apps.sunflower, PID: 7036
java.lang.IllegalStateException: Cannot access database on the main thread since it may potentially lock the UI for a long period of time.
	at androidx.room.RoomDatabase.assertNotMainThread(RoomDatabase.kt:439)
	at androidx.room.RoomDatabase.beginTransaction(RoomDatabase.kt:508)
	at com.google.samples.apps.sunflower.data.GardenPlantingDao_Impl.insertGardenPlanting(GardenPlantingDao_Impl.java:87)
	at com.google.samples.apps.sunflower.data.GardenPlantingRepository.createGardenPlanting(GardenPlantingRepository.kt:25)
	at com.google.samples.apps.sunflower.viewmodels.PlantDetailViewModel$addPlantToGarden$1.invokeSuspend(PlantDetailViewModel.kt:40)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.internal.DispatchedContinuationKt.resumeCancellableWith(DispatchedContinuation.kt:363)
	at kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable(Cancellable.kt:26)
	at kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable$default(Cancellable.kt:21)
	at kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:88)
	at kotlinx.coroutines.AbstractCoroutine.start(AbstractCoroutine.kt:123)
	at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch(Builders.common.kt:52)
	at kotlinx.coroutines.BuildersKt.launch(Unknown Source:1)
	at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch$default(Builders.common.kt:43)
	at kotlinx.coroutines.BuildersKt.launch$default(Unknown Source:1)
	at com.google.samples.apps.sunflower.viewmodels.PlantDetailViewModel.addPlantToGarden(PlantDetailViewModel.kt:39)
	at com.google.samples.apps.sunflower.plantdetail.PlantDetailFragment$onCreateView$binding$1$1.add(PlantDetailFragment.kt:70)
	at com.google.samples.apps.sunflower.databinding.FragmentPlantDetailBindingImpl._internalCallbackOnClick(FragmentPlantDetailBindingImpl.java:247)
	at com.google.samples.apps.sunflower.generated.callback.OnClickListener.onClick(OnClickListener.java:11)
	at android.view.View.performClick(View.java:7506)
	at android.view.View.performClickInternal(View.java:7483)
	at android.view.View.-$$Nest$mperformClickInternal(Unknown Source:0)
	at android.view.View$PerformClick.run(View.java:29334)
	at android.os.Handler.handleCallback(Handler.java:942)
	at android.os.Handler.dispatchMessage(Handler.java:99)
	at android.os.Looper.loopOnce(Looper.java:201)
	at android.os.Looper.loop(Looper.java:288)
	at android.app.ActivityThread.main(ActivityThread.java:7872)
	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:936)
	Suppressed: kotlinx.coroutines.internal.DiagnosticCoroutineContextException: [StandaloneCoroutine{Cancelling}@bf3ec60, Dispatchers.Main.immediate]