Any thoughts? Has anyone gotten this to work in Sketchup make?

I have the same problem. It worked great in 8 but gives that error message in Sketchup Make. A made a cube turned it into a group, made a second cube turned it into a group. the cubes overlap by about 50% then I select the two groups. A window pops up and says "OSCOOLEAN needs UPDATE: OSCoolean is a beta version(Sep 2010) for Google Sketchup Version 8!
then you click on OK and get nothing.

The ruby Console gives these two errors:
Error: #<NoMethodError: undefined method best_picked' for nil:NilClass> (eval):98:in set_current_point'
(eval):73:in onLButtonUp' (eval):98 Error: #<NoMethodError: undefined method best_picked' for nil:NilClass>
(eval):98:in `set_current_point'

BTW I've tried this on both my MAC and Windows 7 machine. doesn't work on either.

I've included the file
Thanks

Test.skp