Well I wanted to create a demo for this game and I changed the levels and created new levels, didn't delete anything. I then renamed the title of the game from - Alpha to - Demo. Then I hit ctrl + s like I always do and then exported it. Then I go to open it again, I get this error.
<img src="http://screensnapr.com/e/UnqjM3.png" border="0" />
And project doesn't load again.