I keep hitting those exceptions in one of my scope...

# coroutines

[Pacane]

I keep hitting those exceptions in one of my scope.launch { } blocks

kotlinx.coroutines.JobCancellationException: StandaloneCoroutine was cancelled;

Is there a way to know where this cancellation is coming from? I've put logging+breakpoints everywhere I manually cancel the job, but it's coming from somewhere else..?

[fatih]

Are you launching another Coroutine in this scope. I believe this can happen if you try to launch a new Coroutine after the scope is cancelled.

[Pacane]

I'm using launch and withContext in that scope, yes

[fatih]

It is hard to tell without a code but where are you cancelling the scope?

[Pacane]

outside the whole thing

[Casey Brooks]

If one job has an error, all its parent jobs are then cancelled. When a job is cancelled, it also cancels all its children. Thus, if a single job has an error, the entire tree of jobs is cancelled.

You’ll probably want to to use a supervisorScope to manage independent parallel tasks https://kotlinlang.org/docs/reference/coroutines/exception-handling.html#supervision

[Pacane]

I have an eventbus event, and when it receives a certain type of event it cancels the job

[Pacane]

returned from the launch function

[Pacane]

gotcha

[Pacane]

I'll try that