My module is for ios/android. I’ve got an error

IncorrectDereferenceException: illegal attempt to access non-shared ...

the object is created in

commonMain

part of the code, on a background thread. if I switch to main thread on kotlin part it works fine. but if I switch on iOS one, this crash occurs on access to the object. looks like

freeze()

is only available from ios part. Or am I missing some imports? How can I freeze an object in common code?

Yes

freeze()

is on native currently, you can write your own

expect

in the common, which actually freezes only on the native part, does nothing on jvm

This is not supported out of the box, but there are several approaches available. For example, there was a related question some time ago: https://kotlinlang.slack.com/archives/C3SGXARS6/p1598107685016400