Hello all, I'm updating to kotlin 2 on a project and got a weird error: ```org.jetbrains.kotlin.util...

# multiplatform

[Alejandro Moya]

Hello all, I'm updating to kotlin 2 on a project and got a weird error:

org.jetbrains.kotlin.util.FileAnalysisException: Somewhere in file NetworkResult.kt: java.lang.NoSuchMethodError: 'org.jetbrains.kotlin.fir.types.ConeKotlinType org.jetbrains.kotlin.fir.types.FirResolvedTypeRef.getType()'

The file is a sealed class and was compiling perfectly on pre 2.0 configuration, does anyone know about this kind of issue?

[Alejandro Moya]

The trace goes to: K2JVMCompiler.kt

[tapchicoma]

please create a Kotlin issue including if possible a repro

[Shadman]

@Alejandro Moya hello. i'm facing the same issue. did you find a solution?

[tapchicoma]

cc @dmitriy.novozhilov

[dmitriy.novozhilov]

Do you have any compiler plugins enabled?
Such exceptions usually indicate that there is a compiler plugin compiled against some older compiler version, so it's binary incompatible with the new compiler.

Also the full stacktrace would be helpful

[Shadman]

I was looking for a youtrack issue to put the details but unable to find it.
I'm using composeCompiler and kotlinSerialization but both are updated with kotlin 2.2.0

[dmitriy.novozhilov]

Please create a new issue then

[Shadman]

https://youtrack.jetbrains.com/issue/KT-78973/Internal-compiler-error-org.jetbrains.kotl[…]eption-Somewhere-in-file-x.kt-java.lang.NoSuchMethodError

[dmitriy.novozhilov]

As I can see, the issue is raised by the realm compiler plugin.

java.lang.NoSuchMethodError: 'org.jetbrains.kotlin.fir.types.ConeKotlinType org.jetbrains.kotlin.fir.types.FirResolvedTypeRef.getType()'
	at io.realm.kotlin.compiler.IrUtilsKt.isBaseRealmObject(IrUtils.kt:225) // <--------- see the package name here
	at io.realm.kotlin.compiler.fir.model.CompanionExtension.getNestedClassifiersNames(CompanionExtension.kt:45)

[Shadman]

hmm. But the realm plugin is updated into the latest version 3.0.0

[dmitriy.novozhilov]

The question is if it is compatible with 2.2.0 compiler

[dmitriy.novozhilov]

According to this, the latest compatible kotlin version is 2.0.20

[Shadman]

thanks . So I need to downgrade.
I also found a related issue in realm-kotlin:
https://github.com/realm/realm-kotlin/issues/1868

[Alejandro Moya]

unfortunately realm is being abandoned, I would recommend migrating to another DB library like SQLDelight