XCode Protocols - xcode

Question

I am adding a new protocol to my project but XCode does not recognize the code. I already have other protocols in the same project without any problems but this time the funny thing is the color of the code is not the right one and the automatic text helper is not recognizing the language.
For example in a protocol the code appear like that:
#import <Foundation/Foundation.h>
#protocol URLGetDelegate <NSObject>
#required
#optional
- (void)setWeather:(NSArray*) data;
- (void)setChemists:(NSData*) data;
#end
Then NSObject appear in purple, however in the new protocol the NSObject appear in black and when I type code, NSO... XCode does not offer me the words NSObject automatically.
#import <Foundation/Foundation.h>
#protocol CompanyDelegate <NSObject>
#end
Any help?
Thanks

Answer 1

What the Laure_f_o is referring to is the lack of standard auto completion and text colorization that happens in XCode; essentially XCode refusing to recognize a newly added protocol as such. So when you try and add it to a class and declare that class as subscribing to that protocol, you get a build error.
I just had the exact same sort of problem: other protocols in my project that work fine, but when trying to add a new one XCode just would not recognize it at all. This is all for XCode 4.6.2
What finally solved it for me was the following (based on Javy's advice here: Xcode Not Immediately Recognizing New Classes (iOS)):
1.) Clean Project
2.) Close project (but not XCode)
3.) Open Organizer in Xcode (under the Window menu)
4.) Select "Projects" tab
5.) Delete "Derived Data" (if you have saved snapshots, you'll have to delete those first)
6.) Quit XCode and restart computer
7.) Reopen project and clean it again
8.) Import the problem protocol into a class and declare that class as subscribing to it
Then, and only then, did I finally get the protocol in question to start behaving as such and didn't get build errors trying to use it in classes.