I am getting `Engine exception: Kotlin reflection implementation is not found at runtime. Make sure ...

# kotest

[Marek Kubiczek]

I am getting Engine exception: Kotlin reflection implementation is not found at runtime. Make sure you have kotlin-reflect.jar in the classpath when running kotest tests from Android Studio with the help of kotest idea plugin. The same running from command line using gradle works just fine.

[sam]

Is the kotlin-reflect jar added to your dependencies ?

[Marek Kubiczek]

Initially it wasn’t (but I believe it could have been added transitively by some other libs. But I tried also adding

testImplementation("org.jetbrains.kotlin:kotlin-reflect:1.7.21")

and that didn’t help.
Also there is no problem running the test from command line using app:test

[Marek Kubiczek]

I wonder if there might be a problem with idea plugin, looks like it doesn’t pick everything it should.

[Marek Kubiczek]

Adding kotlin-reflect.jar manually to the classpath (in the kotest configuration dialog) allows to run the test which then fails at a later stage with kotlinx.coroutines.internal.ThreadSafeHeapNode kotlinx.coroutines.internal.ThreadSafeHeap.find(kotlin.jvm.functions.Function1)'
But that should already be on the classpath as that is all already set in build.gradle.kts