Comment #2 on issue 1034 by chisvasi...@gmail.com: Glamour easel and GTDebugger http://code.google.com/p/moose-technology/issues/detail?id=1034
The problem appears because the code is compiled into a method without source code, and then when it's executed the source code seems to be needed. It can be solved by setting a notifier object when calling the compiler: in GLMRoassalEasel>>evaluate:in:for:
Smalltalk compiler evaluate: script in: context to: context notifying: self ifFail: [^ #failedDoit]
Seems to work, but I'm not sure exactly what the notifier should do.