I've started making a map a few weeks ago but I had to reinstall Windows. I didn't format my drive, just C: . When I opened my map with the editor it says:
Unable to load "the map" -Level info data missing or invalid
Can I fix this problem or my past 3 weeks were just a waste of time?
that same error appears when a map is protectec. maybe u can unprotect it or sumthing (although u ddiitn protect) if u cant open, dont u have some paper where u write what u do in ur map? then u can do it over again alot faster
Wait a second that happened to me once, I imported some icons in my map (hopefully had backup ) and the editor told me the same thing if u imported icons it might be for that reason, else I dunno