hi Seth, I've never heard of that error before, and others are better placed to advise on session handling, but just to provide an escape path...
Right-click on your package and choose "File Out", and it will inform you of the created file name. Then in a fresh image go World > Tools > File Browser, find the file and right-click on it then "FileIn entire file" cheers -ben On 10 December 2017 at 09:54, Seth <dekathe...@gmail.com> wrote: > So, I've been trying to save and close my image for a while now. > > It won't even just close without saving, it constantly pops up the error > from this subject. > > I'm fairly new to all this, but I followed it to I think an Array of > ClassSessionHandlers one of which is ClassSessionHandlers(nil) but I don't > know how to get rid of it, I also opened the process browser and found a > Morphic UI Process: nil which i tried to terminate. None of which seems to > work. How to I get this nil value out of my image save / shutdown process? > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > >