Coroutine issues with Dispatchers.Main

[AlbRoehm]

After upgrading to compose-kmp 1.6.0 i'm seeing following issues even when the mentioned packages are present.

Exception in thread "OkHttp Dispatcher" java.lang.IllegalStateException: Module with the Main dispatcher is missing. Add dependency providing the Main dispatcher, e.g. 'kotlinx-coroutines-android' and ensure it has the same version as 'kotlinx-coroutines-core'
	at kotlinx.coroutines.internal.MainDispatchersKt.throwMissingMainDispatcherException(MainDispatchers.kt:77)
	at kotlinx.coroutines.internal.MissingMainCoroutineDispatcher.missing(MainDispatchers.kt:108)

I hoped that #5 fixed this issues but its still there. Replacing Dispatchers.Main with Dispatchers.Default in FirebaseAuth.kt, AsyncTask.kt and Handler.ktseems to fix the issue for me. I'm not super deep into coroutines and dispatcher, please ignore if this does not make sense to you.

[nbransby]

After upgrading to compose-kmp 1.6.0 i'm seeing following issues even when the mentioned packages are present.

What mentioned packages are you referring to? I'm not super deep into compose-kmp, what library is used to add the Main dispatcher? For a swing-based env you would use kotlinx-coroutines-swing, like the tests do:
https://github.com/GitLiveApp/firebase-java-sdk/blob/master/build.gradle.kts#L153

[AlbRoehm]

Sorry, maybe my description was misleading. For the android source set kotlinx-corountines-android is present in my project and for jvm-desktop kotlinx-coroutines-swing is present. For compose 1.5.11 this worked fine but it seems that Dispatchers.Main is not working correctly anymore when compose 1.6.0 is used. With my proposed changes I got it working again by changing the dispatcher and publishing to mavenlocal

[nbransby]

What version of coroutines does compose 1.6.0 ship with?

[AlbRoehm]

It looks like the compose-runtime is bringing corountines:1.8.0

+--- org.jetbrains.compose.runtime:runtime:1.6.1
|    +--- org.jetbrains.compose.collection-internal:collection:1.6.1
|    |    +--- org.jetbrains.compose.annotation-internal:annotation:1.6.1
|    |    |    \--- org.jetbrains.kotlin:kotlin-stdlib:1.9.23 (*)
|    |    +--- org.jetbrains.kotlin:kotlin-stdlib:1.9.23 (*)
|    |    \--- org.jetbrains.kotlinx:atomicfu:0.23.2
|    |         \--- org.jetbrains.kotlin:kotlin-stdlib:{prefer 1.9.21} -> 1.9.23 (*)
|    +--- org.jetbrains.kotlin:kotlin-stdlib-common:1.9.23
|    |    \--- org.jetbrains.kotlin:kotlin-stdlib:1.9.23 (*)
|    +--- org.jetbrains.kotlinx:atomicfu:0.23.2 (*)
|    \--- org.jetbrains.kotlinx:kotlinx-coroutines-core:1.8.0
|         +--- org.jetbrains.kotlin:kotlin-stdlib:1.9.21 -> 1.9.23 (*)
|         \--- org.jetbrains.kotlinx:atomicfu:0.23.1 -> 0.23.2 (*)

[AlbRoehm]

Maybe this was only because of usage of different coroutine packages?
With latests update of kotlin-sdk 1.12.0 this is not an issues anymore. Fine to close from my perspective.

[AlbRoehm]

Turns out for Windows the issues is still there also with the new version of kotlin-sdk. Changing to Dispatchers.Default fixes it also for Windows, at least how far i can tell.

[nbransby]

Not sure what's going on there but changing it to Dispatchers.Default is more of a workaround/hack, need to find out what the root cause is

[alexzhirkevich]

The core issue is here and it is going to be fixed soon - Kotlin/kotlinx.coroutines#3914. There is a workaround to disable fast service loader mentioned there

[Deaths-Door]

I'm encountering the known issue with kotlinx.coroutines that affects applications running on Windows.

The core issue is here and it is going to be fixed soon - Kotlin/kotlinx.coroutines#3914. There is a workaround to disable fast service loader mentioned there

Disabling the fast service loader, as suggested in the workaround, currently doesn't work on Windows. Setting System.setProperty("kotlinx.coroutines.fast.service.loader", "false") doesn't resolve the problem.

Exception in thread "AWT-EventQueue-0" java.lang.IllegalStateException: Module with the Main dispatcher is missing. Add dependency providing the Main dispatcher, e.g. 'kotlinx-coroutines-android' and ensure it has the same version as 'kotlinx-coroutines-core'
	at kotlinx.coroutines.internal.MainDispatchersKt.throwMissingMainDispatcherException(MainDispatchers.kt:77)
	at kotlinx.coroutines.internal.MissingMainCoroutineDispatcher.missing(MainDispatchers.kt:108)
	at kotlinx.coroutines.internal.MissingMainCoroutineDispatcher.isDispatchNeeded(MainDispatchers.kt:92)
	at kotlinx.coroutines.internal.DispatchedContinuationKt.resumeCancellableWith(DispatchedContinuation.kt:315)
	at kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable(Cancellable.kt:26)
	at kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable$default(Cancellable.kt:21)
	at kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:88)
	at kotlinx.coroutines.AbstractCoroutine.start(AbstractCoroutine.kt:123)
	at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch(Builders.common.kt:52)
	at kotlinx.coroutines.BuildersKt.launch(Unknown Source)
	at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch$default(Builders.common.kt:43)
	at kotlinx.coroutines.BuildersKt.launch$default(Unknown Source)
	at com.google.firebase.auth.FirebaseAuth.addAuthStateListener(FirebaseAuth.kt:397)
	at dev.gitlive.firebase.auth.FirebaseAuth$authStateChanged$1.invokeSuspend(auth.kt:35)
	at dev.gitlive.firebase.auth.FirebaseAuth$authStateChanged$1.invoke(auth.kt)
	at dev.gitlive.firebase.auth.FirebaseAuth$authStateChanged$1.invoke(auth.kt)
	at kotlinx.coroutines.flow.ChannelFlowBuilder.collectTo$suspendImpl(Builders.kt:316)
	at kotlinx.coroutines.flow.ChannelFlowBuilder.collectTo(Builders.kt)
	at kotlinx.coroutines.flow.CallbackFlowBuilder.collectTo(Builders.kt:330)
	at kotlinx.coroutines.flow.internal.ChannelFlow$collectToFun$1.invokeSuspend(ChannelFlow.kt:56)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:104)
	at androidx.compose.ui.platform.FlushCoroutineDispatcher$dispatch$2$1.invoke(FlushCoroutineDispatcher.skiko.kt:62)
	at androidx.compose.ui.platform.FlushCoroutineDispatcher$dispatch$2$1.invoke(FlushCoroutineDispatcher.skiko.kt:57)
	at androidx.compose.ui.platform.FlushCoroutineDispatcher.performRun(FlushCoroutineDispatcher.skiko.kt:99)
	at androidx.compose.ui.platform.FlushCoroutineDispatcher.access$performRun(FlushCoroutineDispatcher.skiko.kt:37)
	at androidx.compose.ui.platform.FlushCoroutineDispatcher$dispatch$2.invokeSuspend(FlushCoroutineDispatcher.skiko.kt:57)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:104)
	at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:792)
	at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:739)
	at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:733)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:761)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:207)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:92)
	Suppressed: kotlinx.coroutines.internal.DiagnosticCoroutineContextException: [StandaloneCoroutine{Cancelling}@2abc176, Dispatchers.Main[missing]]
Exception in thread "AWT-EventQueue-0" java.lang.IllegalStateException: Module with the Main dispatcher is missing. Add dependency providing the Main dispatcher, e.g. 'kotlinx-coroutines-android' and ensure it has the same version as 'kotlinx-coroutines-core'
	at kotlinx.coroutines.internal.MainDispatchersKt.throwMissingMainDispatcherException(MainDispatchers.kt:77)
	at kotlinx.coroutines.internal.MissingMainCoroutineDispatcher.missing(MainDispatchers.kt:108)
	at kotlinx.coroutines.internal.MissingMainCoroutineDispatcher.isDispatchNeeded(MainDispatchers.kt:92)
	at kotlinx.coroutines.internal.DispatchedContinuationKt.resumeCancellableWith(DispatchedContinuation.kt:315)
	at kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable(Cancellable.kt:26)
	at kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable$default(Cancellable.kt:21)
	at kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:88)
	at kotlinx.coroutines.AbstractCoroutine.start(AbstractCoroutine.kt:123)
	at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch(Builders.common.kt:52)
	at kotlinx.coroutines.BuildersKt.launch(Unknown Source)
	at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch$default(Builders.common.kt:43)
	at kotlinx.coroutines.BuildersKt.launch$default(Unknown Source)
	at com.google.firebase.auth.FirebaseAuth.addAuthStateListener(FirebaseAuth.kt:397)
	at dev.gitlive.firebase.auth.FirebaseAuth$authStateChanged$1.invokeSuspend(auth.kt:35)
	at dev.gitlive.firebase.auth.FirebaseAuth$authStateChanged$1.invoke(auth.kt)
	at dev.gitlive.firebase.auth.FirebaseAuth$authStateChanged$1.invoke(auth.kt)
	at kotlinx.coroutines.flow.ChannelFlowBuilder.collectTo$suspendImpl(Builders.kt:316)
	at kotlinx.coroutines.flow.ChannelFlowBuilder.collectTo(Builders.kt)
	at kotlinx.coroutines.flow.CallbackFlowBuilder.collectTo(Builders.kt:330)
	at kotlinx.coroutines.flow.internal.ChannelFlow$collectToFun$1.invokeSuspend(ChannelFlow.kt:56)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:104)
	at androidx.compose.ui.platform.FlushCoroutineDispatcher$dispatch$2$1.invoke(FlushCoroutineDispatcher.skiko.kt:62)
	at androidx.compose.ui.platform.FlushCoroutineDispatcher$dispatch$2$1.invoke(FlushCoroutineDispatcher.skiko.kt:57)
	at androidx.compose.ui.platform.FlushCoroutineDispatcher.performRun(FlushCoroutineDispatcher.skiko.kt:99)
	at androidx.compose.ui.platform.FlushCoroutineDispatcher.access$performRun(FlushCoroutineDispatcher.skiko.kt:37)
	at androidx.compose.ui.platform.FlushCoroutineDispatcher$dispatch$2.invokeSuspend(FlushCoroutineDispatcher.skiko.kt:57)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:104)
	at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:792)
	at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:739)
	at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:733)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:761)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:207)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:92)
	Suppressed: kotlinx.coroutines.internal.DiagnosticCoroutineContextException: [StandaloneCoroutine{Cancelled}@2abc176, Dispatchers.Main[missing]]
	Suppressed: kotlinx.coroutines.internal.DiagnosticCoroutineContextException: [androidx.compose.ui.scene.ComposeContainer$DesktopCoroutineExceptionHandler@7ac80f17, androidx.compose.runtime.BroadcastFrameClock@6dd0f1ff, StandaloneCoroutine{Cancelling}@599cad48, FlushCoroutineDispatcher@7b995065]

So is there some sort of solution or workaround for this issue?

[AlbRoehm]

So is there some sort of solution or workaround for this issue?

I used a hack/workaround where i did go into codebase and replaced Dispatchers.Main with Dispatchers.Default and published it to MavenLocal and imported it in my project to be used instead. This made it work on Windows for me, but as mentioned by @nbransby this is kind of a bad hack.

[nbransby]

The fix is available: https://github.com/Kotlin/kotlinx.coroutines/releases/tag/1.9.0-RC

have you tried upgrading to 1.9.0-RC?

[AlbRoehm]

Thanks for the reminder, org.jetbrains.kotlinx:kotlinx-coroutines-swing:1.9.0-RC seem to have fixed the issue for me on Mac and on Windows. Also no need to manually import some other version of the java-sdk.

[Deaths-Door]

I can confirm that adding the dependency org.jetbrains.kotlinx:kotlinx-coroutines-swing:1.9.0-RC as suggested by @AlbRoehm , resolves the issue. However, it's important to note that this dependency needs to be included specifically in the desktop source set (Tested on Windows). Simply updating the version to 1.9.0-RC in commonMain doesn't seem to be sufficient.