This error message is totally useless out of context. We need to know “context of what”. What part of eclipse ( or the ac6 additional software ) is reporting this? What is the context a context of?
My guess is that this is a bug where a null or undefined pointer is being passed. But without more intelligent error trapping and more informative error messages there is just about zero possibility of knowing where this is coming from or how to fix it.
We don’t even know where to file a bug report. Is this eclipse or the ac6 software ? No way to know.
Very poor quality.