What does “Forward reference extends over definition of value” mean in Scala?

Question

I keep getting

Forward reference extends over definition of value a

error while trying to compile my application (inside SBT).

Answer 1

If it is referenced somewhere and scalac is confused with the sequence, making it lazy could do the trick

I guess it might be to late for an answer, and since I cannot see what you are actually trying to do I am not sure if that solves it though.