Hello,
Since updating to Lion I'm getting this same error when trying to run rake sunspot:sold:start
http://www.ruby-forum.com/topic/2122776
I have reinstalled rvm, homebrew and all gems. I've also installed Xcode 4.1
Have any of you guys experienced similar problems? this is driving me nuts. Bear in mind that this is not the segmentation bug which apparently can be fixed by recompiling ruby after installing Xcode.
Thanks in advance!