Marcus, I have a very simple fix that seems to work on my side. I implemented:
NautilusUI>>useLastPackagePatternStringForClass: aClass ^ self which seems to be what is return on the subclass of NautilusUI when the last value of a SharedPackageFilterPatternsHolder is nil. Regards, Federico Here is the fileout of that method: NautilusUI-package_filter.st <http://forum.world.st/file/n4854014/NautilusUI-package_filter.st> -- View this message in context: http://forum.world.st/Nautilus-openOnClass-gives-back-a-debugger-tp4853822p4854014.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.