I am getting this error after upgrading Kotlin to 1 4 m2 ``` kotlinlang #announcements

I am getting this error after upgrading Kotlin to ...

Javier

06/06/2020, 2:16 PM

I am getting this error after upgrading Kotlin to 1.4 m2

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e: java.lang.IllegalStateException: Backend Internal error: Exception during file facade code generation

Javier

06/06/2020, 2:16 PM

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Caused by: java.util.NoSuchElementException: List is empty.

Javier

06/06/2020, 2:17 PM

It is a sealed class which uses Kotlin Serialization

Javier

06/06/2020, 2:17 PM

are there problems with Kotlin serialization 0.20.0 and Kotlin 1.4 m2?

Javier

06/06/2020, 2:20 PM

0.20.0-1.4-M2 fix the problem