Can not save document

When I try to save my glyphs file, I a message that “the document could not be saved”. The same thing happens when I create a new document and try to save it.

What version do you have?

Glyphs Version 1.4.5 (614). Mac OS 10.6.8

I’m having the same problem, I get the message “the document could not be saved” so I can’t save any document even if it’s new or old. I have the 2.1 version, OS X Yosemite version 10.10.5

Update to the latest version, please.