Hey folks, I'm getting this `This declaration is o...

# serialization

[Gabe Kauffman]

Hey folks, I'm getting this This declaration is opt-in and its usage should be marked with '@kotlinx. serialization. InternalSerializationApi' or '@OptIn(markerClass = kotlinx. serialization. InternalSerializationApi. class)' warning on all of my data models marked with Kotlinx serialization's @Serializable annotation.

Seems like a pointless / incorrect warning as my app works fine despite these warnings, and it would require me to mark every file with the @OptIn annotation.

I found this Github issue for the problem but the suggested fix to enable K2 mode did not work (already had K2 enabled.) IMO this issue should be re-opened, or does anyone have any other recommendations to fix?

Kotlin version: 1.9.0

[dawidhyzy]

https://github.com/Kotlin/kotlinx.serialization/issues/2844

[Gabe Kauffman]

Yes, if you read my above message you'll see that I linked that issue and stated that the suggested solution does not fix for me:

I found this Github issue for the problem but the suggested fix to enable K2 mode did not work (already had K2 enabled.)

[George Z]

Did you find a solution for this? I've been facing it for a while and it's pretty annoying. I also have K2 enabled. If I disable it, I get this, even though the plugin is applied to the module:

[dawidhyzy]

K2 support in IDE is not great so it’s good workaround for now