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Level 1

0 points

Xcode 4 code sens (code completion) disappeared

I want to share with you a problem I encountered using Xcode 4 GM seed build 4A278. It was shocking 😉 to get no convenient code sense (code completion) in one of my classes inherited from NSObject. My .h file had no problem whatsoever, but the .m file didn't react to any of my gestures including the control command key combination.

All other files in the project the code sensing feature worked fine. This was my first couple of hours with Xcode 4 and the project was converted from Xcode 3. In the end, the solution was to copy the code into memory, delete the .m file, add a new .m file and finally pasting the code in to the .m file. Voila, there was the code sensing. You never know, you may experience a similar problem in the future.

I think I really going to like the new Xcode 4, good job Xcode team!

MacBook Pro 17, Mac OS X (10.6.6)

Posted on Feb 7, 2011 4:39 AM

23 replies

Ted Han

Level 1

4 points

Mar 11, 2011 2:08 AM in response to AcidStuff

I also had the same problems.
I fixed this by making project newly in XCode 4.0.
Code sens works well.
Just because the default folder hierarchy XCode make is changed, could it happen?...

red_muze

Level 1

0 points

Mar 11, 2011 7:54 PM in response to Ted Han

that didnt do it for me.
codesense is not working only gives irrelevant info

Ted Han

Level 1

4 points

Mar 13, 2011 11:05 PM in response to AcidStuff

I got a reason.
In my case,
there was a problem in .pch file, so indexing was broken.
check that points.

Mar 21, 2011 9:16 AM in response to uLikeIT

uLikeIT's solution worked for me as well. Once the iOS library was installed, my projects created under XCODE 3 for which 'code-sense' was not functioning have now regained code sense.

Thanks uLikeIT!

Apr 12, 2011 7:35 PM in response to AcidStuff

I had the same problem, apparently because my project was in Dropbox. I moved the project out and had to relink all the files relative to the group. Code sense now works!

Apr 26, 2012 7:13 AM in response to AcidStuff

I am 100% sure that it is a porblem with DerivedData.

XCode by default places DerivedData into a unique location (a folder deep hidden in Users files and with a GUID name).

How to fix: (verified)

- Not recommended but works : Deleting contents of the DerviedData (in XCode's default location) is good and works but does not seem a good solution. This porblem will pop-up over time to time. Deleting everything in default DerviedData folder also means loosing any stuff from all other projects

- Recommended and working:

- Go to XCode - Preferences -> Locations

In the first section named "Derived Data" click on "Advanced" button.

In the subsequent screen select radio option "Custom" and then in the drop down (that shows next to Custom)

select option "Realtive to Workspace"

Click "Done"

In the Locations screen (which you will be after clicking Done button) open the dropdown which shows next to the "Derived Data" and select option "Relative".

Thats it.

Enjoy

May 13, 2012 10:05 PM in response to shakirzareen

Deleting Derived Data and re-opening my projetc did the trick for me.

Nov 21, 2013 12:51 PM in response to AcidStuff

After hours googling and trying dozens of things, you saved my day. Copying the code, deleting and recreating the .m file affected solved the thing. Thanks!

Xcode 4 code sens (code completion) disappeared