Can't Open Project in Xcode 4.6 After Opening in 5.0

Question

I opened the wrong version of my project in Xcode 5 and now Xcode 4.6 crashes when trying to open that project. I only changed one xib file in Xcode 5 and using Xcode 5 have opened the xib in IB and under Interface Builder Document, changed Opens in from Xcode 5.0 to Xcode 4.6. Any ideas why 4.6 crashes when opening the project?

EDIT:

I made a copy of the project folder and now, even though all of the files are in the old project folder, none of them show in xcode 4.6 or 5 when I open the project. None of my images, class files, or anything are showing in xcode even though they are all still in the project folder.

Answer 1

Its easier than that to recover your existing project. Open the project file on Xcode 5. Then:

1. Open file inspector for each xib
2. On "Interface Builder Documents" section change "Open with" to Xcode 4.6 (if it's 5.0). Adjust any other obviously incompatible parameters
3. Save, Close the project and open with the old Xcode.

Answer 2

Change the Interface Builder Documents > opens in to Xcode 4.6