Hi All, tried Kotlin 1.4.0 on existing code (worki...

# eap

[Ran]

Hi All, tried Kotlin 1.4.0 on existing code (working in 1.3.72),
got this error class instantiation (object), not sure what is the issue or how to debug
“Exception in thread “main” java.lang.NoClassDefFoundError: kotlin/KotlinNothingValueException”

[gildor]

Looks that you don’t have Kotlin Stdlib in classpath

[Ran]

thanks @gildor it worked

[louiscad]

How would the stdlib end up missing in the classpath? Are you using Gradle or something else?

[Nikky]

i had similar issues during the upgrade.. gradle had to be a bit annoying with its caches

[udalov]

This problem is possible if the code is compiled with Kotlin compiler 1.4 against stdlib 1.4, but at runtime, there’s only stdlib of earlier version (e.g. 1.3) in the classpath. A workaround is to use -api-version 1.3, but that would prevent you from using the new API added in kotlin-stdlib 1.4.

[louiscad]

How would it go missing from the runtime classpath but available at compile time unless compileOnly is used?

[Ran]

it was in a mix Java project, so it’s didn’t like the java path anymore, changing to kotlin directory fixed it.

[gildor]

Do you mean src/main/java vs src/main/Kotlin source sets?

[Ran]

yes