is it still called name.capx.autosave or have you removed the .autosave ? If you have not - do so (but be carefull that you don't overwrite anything you want to keep - might be a good idea to rename it to name.autosave.capx) and try again.
edit (14:30 12/01/2014)
<img src="smileys/smiley9.gif" border="0" align="middle" /> before posting the above I thought I would just check and make sure that you needed to remove the .autosave extension - what I didn't do was to update construct 2 (this laptop is (was) running version 141 !) surprisingly construct 141 was not interested in loading files ending in .autosave but was happier about .capx (still had problems but that was due to version numbers). Anyway sorry about that. <img src="smileys/smiley9.gif" border="0" align="middle" />