The library not found problem has been resolved. We are now back to a VM crash when GTK is used. Pharo-Mars is still not running on Ubuntu.
For those who want the details - The library problem was caused by Ubuntu not creating a symbolic link libGtk-3.so. It only has a libGtk-3.so.0 link. When I created the libGtk-3.so link, I got a VM crash when the image starts up. I see that Estaban has recently fixed the library issue by adding libGtk-3.so.0 to the library search path. He has also changed something in the startup of Pharo-Mars because I no longer get a VM crash when the Image starts up - I now get the crash when a GTK Spec application starts up. I'm just waiting for Estaban to update the issue to say he's had a chance to look at the crash. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html