iOS crash ```Uncaught Kotlin exception: kotlin.IllegalStateException: There is no event loop. Use ru...

# multiplatform

[Marko Novakovic]

iOS crash

Uncaught Kotlin exception: kotlin.IllegalStateException: There is no event loop. Use runBlocking { ... } to start one.

Kotlin 1.6.10 and 0.11.3-new-mm https://github.com/rickclephas/KMP-NativeCoroutines (idk if this library has anything to do with it tho)

[Marko Novakovic]

class Count {

    @NativeCoroutineScope
    private val coroutineScope = MainScope()

    private val _count = MutableStateFlow(0)
    val count: StateFlow<Int>
        get() = _count.asStateFlow()

    init {
        coroutineScope.launch {
            _count.value = 1
            delay(500)
            _count.value = 2
            delay(500)
            _count.value = 3
            delay(500)
            _count.value = 4
            delay(500)
            _count.value = 5
        }
    }
}

[Rick Clephas]

Are you by any chance using other libraries that also depend on kotlinx.coroutines?

[Marko Novakovic]

no. I tried adding NativeCoroutines to existing project and I was facing issues so I created sample project where am just using your library and I get this problem

[Marko Novakovic]

am on M1 mac if that info helps in any way

[Rick Clephas]

Could you try and see if using CoroutineScope(SupervisorJob() + Dispatchers.Default) instead of MainScope() makes a difference?

[Marko Novakovic]

I will try it now

[Marko Novakovic]

thanks

[Marko Novakovic]

illegal attempt to access non-shared <object>@2cc6128 from other thread

[Marko Novakovic]

actually it’s not your library that causes errors

[Rick Clephas]

Alright that error sounds better 🙂. You should either annotate the object with SharedImmutable or ThreadLocal.
https://kotlinlang.org/docs/native-immutability.html#global-variables-and-singletons

[Marko Novakovic]

solved it 😄

[Marko Novakovic]

kotlin.native.binary.memoryModel=experimental

forgot to add this in gradle.properties