I've been using Xcode 4.3.1 since it came out now and i've worked on many different projects since. Everything has always worked fine until this 1 new project i'm working on.
The code completion/code sense never finds anything or when i 'Command+Click' a variable or class normally it would jump to that but now i'm just getting 'Symbol Not Found'.
If I open one of my older project while this bad one is open, the old ones still work for code sense and the new one doesn't.
My partner is working on the same project, we both get the files from our repository and the code sense works on his machine for this project...just not mine.
So i'm a little confused as to how to fix this..any ideas?!
Thanks!
I had this problem, restarted, quit Xcode, nothing happened. Switched to master branch, pulled, checkout into new branch. Problem Gone. I even went back to my previous branch and all was working. My only guess is that git messes up sometimes!
Similar issues with XCode 8. Just quitting the XCode and Simulator, reopening the project worked. Other times, Restarting the mac gets rid of question mark and does navigate to relevant method implementations
And at times, simply closing the project and opening it again from 'File -> Open Recent' also works (XCode 8 and Swift 3)
In my case I solved in this way.
Now re-build.
This could be happen, for instance, when your manually rename a class after its creations.
Hope this help.
3 reasons this happens :
Corrupt derived data : Solution : clean derived data folder.
Corrupt project settings : Project.xcodeproject -> Right Click and clean the files mentioned in g_low's answer.
File not a part of project target : Check if the file is a part of compile source and if not add it...
With Xcode 8.2 I solved in this way:
Now in your project see if cmd+click works
For others if none of the above mentioned methods worked try this :
Go to menu bar Xcode - > Preferences -> Locations -> Command Line Tools
Choose proper (current) Xcode format here.