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kotlinlang

I’ve tried to turn on `newIR`  with `1.4.20-RC`  on my project.
Getting this compilation error with no details attached.
```e: java.lang.IncompatibleClassChangeError: Found class org.jetbrains.kotlin.ir.declarations.IrClass, but interface was expected
	at androidx.compose.compiler.plugins.kotlin.VersionChecker.check(VersionChecker.kt:62)
	at androidx.compose.compiler.plugins.kotlin.ComposeIrGenerationExtension.generate(ComposeIrGenerationExtension.kt:40)
	at org.jetbrains.kotlin.backend.jvm.JvmBackendFacade$doGenerateFiles$1.invoke(JvmBackendFacade.kt:91)
	at org.jetbrains.kotlin.backend.jvm.JvmBackendFacade$doGenerateFiles$1.invoke(JvmBackendFacade.kt:40)
	at org.jetbrains.kotlin.psi2ir.Psi2IrTranslator.generateModuleFragment(Psi2IrTranslator.kt:95)```
How can I understand, what exact code causes this error?

<https://kotlinlang.slack.com/archives/CJLTWPH7S/p1604010597431400>