I got this exception:

kotlin.reflect.jvm.internal.KotlinReflectionInternalError: Introspecting local functions, lambdas, anonymous functions and local variables is not yet fully supported in Kotlin reflection

In function

toString()

of a data class. The data class contains a lambda. Do I need to override

toString()

to exclude the lambda? Or lambdas are not allowed in data classes at all?

It would be easier to answer with some sample code. Could you post your question on StackOverflow?