I’m getting this error:

Uncaught Kotlin exception: kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen com.jetbrains.handson.mpp.mobile.services.deviceStorage.DeviceStorage@2164548

Even though my DeviceStorage has

import kotlin.native.concurrent.ThreadLocal

@ThreadLocal
object DeviceStorage {
...
}

Anyone knows how to get this to work?

What’s inside

DeviceStorage

? It’s also possible something else is freezing

DeviceStorage

, even if the runtime isn’t doing so automatically (call

ensureNeverFrozen()

on it)