Hey Guys. I am having a problem with coroutines. I...

# announcements

[David Cuesta]

Hey Guys. I am having a problem with coroutines. I have the next:

GlobalScope.launch {
                CoroutineScope(a.context).launch {
                val b = c.await()
                store(b)
                println("Hello")
            }.join()
        }

where a is an object which contains a Coroutine context and c is a deferred value obtained from a calling a suspend function. It never prints Hello because there is a NullPointerException when tries to store a. Anyone knows why is it happening?? My target is to wait until the deferred value a is completed and then store it using the store function, which is not a suspend function.

[LeoColman]

Perhaps you're looking for runBlocking?

[LeoColman]

Or async await?

[David Cuesta]

I have tried with those solutions but it is not working for me and I don't undertand the problem

[LeoColman]

Why isn't it working?

[David Cuesta]

It seems like it gets a null pointr exception when I use store a, but I don't know why

[LeoColman]

is this the only place you're using a?

[David Cuesta]

sorry

[David Cuesta]

there is a mistake in the code snippet

[David Cuesta]

I have fixed it

[gildor]

What exactly you want to achieve with such code? Example looks incomplete (there is no a and c in your snippet), and overcomplicated

[Dico]

I think the problem is that await is throwing the npe and you're gonna need to find the code of that coroutine from the stacktrace.