Crash after upgrade from 1.3.0 to 1.3.1

Since I updated to coroutines 1.3.1 on Android projects it started to crash on all existing 3rd libraries that using coroutines too.

It is just minor bugfix version I would not expect backward incompatibility on such release.

But there is this small unimportant note:

Note: Kotlin/Native artifacts are now published with Gradle metadata format version 1.0, so you will need Gradle version 5.3 or later to use this version of kotlinx.coroutines in your Kotlin/Native project.

Can this be a reason?

My project is using Gradle 5.6.2, but the library is using an older version than 5.3

    java.lang.IllegalStateException: Module with the Main dispatcher is missing. Add dependency providing the Main dispatcher, e.g. 'kotlinx-coroutines-android'
        at kotlinx.coroutines.internal.MissingMainCoroutineDispatcher.missing(MainDispatchers.kt:90)
        at kotlinx.coroutines.internal.MissingMainCoroutineDispatcher.isDispatchNeeded(MainDispatchers.kt:71)
        at kotlinx.coroutines.DispatchedKt.resumeCancellable(Dispatched.kt:420)
        at kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable(Cancellable.kt:26)
        at kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:109)
        at kotlinx.coroutines.AbstractCoroutine.start(AbstractCoroutine.kt:154)
        at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch(Builders.common.kt:54)
        at kotlinx.coroutines.BuildersKt.launch(Unknown Source:1)
        at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch$default(Builders.common.kt:47)
        at kotlinx.coroutines.BuildersKt.launch$default(Unknown Source:1)

I have both dependencies

    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.1'
    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.1'

[mhernand40]

FWIW, my team was also running into this crash when we upgraded from 1.3.1 to 1.3.2. The workaround we’ve used was to run ./gradlew clean followed by the corresponding install task using the --no-build-cache argument.

[svenjacobs]

Having the same problem here after upgrading to 1.3.1. The error seems to happen randomly, not every time. Downgrading to 1.3.0 fixes it. R8 config was not changed between these two versions.

Update: Also happening for debug builds without R8!