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kotlinlang

kotlinx.serialization.json.internal.JsonDecodingException: Polymorphic serializer was not found for missing class discriminator ('null')
failed when enabled R8
issue related to <http://proguard-rules.pro|proguard-rules.pro> what should I add to solve the problem

<https://github.com/Kotlin/kotlinx.serialization/blob/master/CHANGELOG.md|https://github.com/Kotlin/kotlinx.serialization/blob/master/CHANGELOG.md>

1.5.0 bundles Proguard Rules which fixed my issues. Are you using 1.5.0?

i upgrade to Android Gradle Plugin (AGP) 8.0 hence the *R8 full mode by default* 
so i disabled it to solve issue
the proguard rules provided from<https://github.com/Kotlin/kotlinx.serialization> not working with me