When I double-click my file StartWindow.xib in Xcode 4, it does not open into the integrated Interface Builder; it opens like a XML file. I can open all other xib files and they display as expected. I can open it with the old Interface Builder via "Open with".
What can I do to open it with the integrated Interface Builder?
Best Answer
Had this happen to me awhile ago. I had to go to
File
->Close myfilename.xib
and then reopen it before it would honor the file type. I think the shortcut is Ctrl + Cmd + W if you are looking at the file.