Comment 1 for bug 1057414

Please post the complete output on the terminal. I can't reproduce the issue here.

Also indicate exactly the sequence of action to lead to a crash, here if i try to save when no relations are loaded, it prints an exception but keeps running fine.

The 2nd crash you reported looks like an issue within QT/PyQT, since the open/save dialogs are provided by this library, there is nothing i can do about it, but i can't reproduce that one either.