Looks like I need to learn the lesson of backing up my data.
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How long have you been working on the .cap?
Looks like you need to use save as, not save.
What version of construct are you using?
Has Construct an automatic backup system? If so, where I turn it on?
I know some CAD (computer-aided design) programs make backups of your works every time you save.
File -> Preferences.
It has options for auto-saving, and making auto-backups of normal saves.
I'm not a big fan of auto-save features, but I'd recommend setting at least 3 auto-backups.
I keep 5 auto-backups, and routinely increment the version number on the end of the file name when I make a significant addition or change. This results in a lot of backups, but can often come in handy. Even if it's not a corrupted file that screws you, imagine that you tried to make a significant change that doesn't work out well... You can always roll it back to undo your mistake.
I wasn't working on it very long, but long enough for it to be sad to have lost.
Thanks for the auto save info, I turned it on.
I'm using version .99.96
Why don't you save your work as a cst file.Ive found that if i save my games as actual templates then it doesn't corrupt so much.