refactor function error - "is not part of the build phase of any targets in the Xcode 3 projects in this workspace and so can't be refactored"

Question

Trying to rename a function's name via the refactor->rename button in a categoriy's .h file in XCode 4.1 I'm getting this error: (error and body)

UINavigationController+ZG.h is not part of the build phase of any targets in the Xcode 3 projects in this workspace and so can’t be refactored.

Add the file to the build phase of a target in an Xcode 3 project in this workspace, or make a selection in another file.

Not sure what it wants and why it's saying something about xcode 3 when i don't have any xcode 3 projects or anything like that.

Answer 1

I had this issue today on a project which don't use workspace at all. I couldn't get why Xcode behave wired. Auto complete worked, but return some really unrelevant results as my FAMILY NAME (?!) for a class I was working on.

I found it to be a bug in Xcode 4.1 under OS X 10.7.1 along side with other issues i had. When I reopen my project, the message was gone, refactoring worked as expected and auto-completing worked as well.

September 2013 Update: It seems that this bug is happening also on Xcode 5 & 10.8.5.

Answer 2

Restarting Xcode did not fix this for me (although it does normally fix a lot of things). I also didn't like the idea of File >> Save As Workspace. As the workspace should already be in my .xcodeproj file, so I didn't want another one. I found another solution that fixed it for me: Window >> Organiser and then Delete Derived Data for my project. Found it mentioned in this other question.

Answer 3

I was able to get past this error by choosing File >> Save As Workspace.

Answer 4

For me personally it was a combination of things.

1. Deleted derived data from Organizer > projects. (Didn't work after this step)
2. Restarted Xcode. (Worked after this step)