I just changed the name of my executable (Cocoa, Xcode 2.x) and was horror struck when the finder said: "This application is damaged or corrupted" (or something along those lines) when I tried to open it. What the **** just happened and how do I fix this?!?!? EDIT: Just fixed it. Looks like Xcode forgot to actually rename the executable . I mean, what's the point of having a field for executable name if it doesn't rename the file when you change it?