What could this error be when I try to run my test...

# test

[dave08]

What could this error be when I try to run my tests?

java.lang.VerifyError: Bad type on operand stack
Exception Details:
  Location:
    kotlin/reflect/jvm/internal/ReflectionFactoryImpl.function(Lkotlin/jvm/internal/FunctionReference;)Lkotlin/reflect/KFunction; @5: invokestatic
  Reason:
    Type 'kotlin/jvm/internal/FunctionReference' (current frame, stack[2]) is not assignable to 'kotlin/jvm/internal/CallableReference'
  Current Frame:
    bci: @5
    flags: { }
    locals: { 'kotlin/reflect/jvm/internal/ReflectionFactoryImpl', 'kotlin/jvm/internal/FunctionReference' }
    stack: { uninitialized 0, uninitialized 0, 'kotlin/jvm/internal/FunctionReference' }
  Bytecode:
    0x0000000: bb00 1059 2bb8 0042 2bb6 0020 2bb6 0021
    0x0000010: 2bb6 001f b700 38b0                    


	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:264)
	at kotlin.jvm.internal.Reflection.<clinit>(Reflection.java:32)