aving this same problem. I have a large project, already live on iOS and Android, just now trying to port to WebPlayer (facebook canvas).
I'm looking at KidNamedLox's solution (changing all calls to GetComponent and not using nested generics.
Is this solution really known to fix the error? The logs for the error are super generic and effectively useless. I hate to start making sweeping changes to my code to address what seems like a compiler/runtime bug, and then not sure how likely it is to even fix the problem.
So rather than: