When trying to run the Coral tests in Pharo 4, one of the tests raises an error when adding a class MNU receiver of "asNautilusSelection" is nil PPCoralCompilerTest>>testAccessIV "self debug: #testAccessIV" | c | self parse: '[ Object < #CoralTestC1 iv: ''bob'' ]'. self shouldnt: [c := Smalltalk at: #CoralTestC1] raise: KeyNotFound. I remember having seen something similar when creating classes in code. Stephan