cannot find protocol declaration, but i'm actually importing it

Question

I get an error: cannot find protocol declaration for 'SentencesDelegate'. However I'm importing the header where the protocol is defined. These are the 2 headers files (defining and using the protocol respectively):

SentencesViewController.h

#import <UIKit/UIKit.h> #import "SansnuageAppDelegate.h" // Define a new protocol // Best practice - make this protocol conform to the <NSObject> protocol @protocol SentencesDelegate <NSObject> // By default, methods are "required"; you can change this by prefacing methods with "@optional" - (void) setSentence:(NSString *)sentence; @end @interface SentencesViewController : UITableViewController { SansnuageAppDelegate* appDelegate; NSArray *sentencesList; } @property (nonatomic, assign) id <SentencesDelegate> delegate; @end

ComposerViewController.h

#import <UIKit/UIKit.h> #import "SentencesViewController.h" #import "ANColorPicker.h" #import "SansnuageAppDelegate.h" @interface ComposerViewController : UIViewController <SentencesDelegate, ANColorPickerDelegate, UITableViewDelegate, UITableViewDataSource> { ANColorPicker * picker; UIView * colorView; UITableView * composerTableView; NSMutableArray *dataList; SansnuageAppDelegate* appDelegate; } @property(nonatomic, retain) UIView * colorView; @property(nonatomic, retain) IBOutlet UITableView *composerTableView; @property(nonatomic, retain) IBOutlet UIButton *previewB; @property(nonatomic, retain) IBOutlet UIButton *sendB; @end

thanks

Did you really mean #import SansnuageAppDelegate; in the second line of your first code block? — Yuji
– Yuji, Commented Aug 22, 2011 at 14:18
@Yuji uhm, yeah I really meant it, I need the delegate to get the managedObjectContext — aneuryzm
– aneuryzm, Commented Aug 22, 2011 at 14:26
There are no quotes or braces around the second import statement in SentencesViewController.h - Is that a typo or is that really how you have it? — Tim Dean
– Tim Dean, Commented Aug 22, 2011 at 14:33
@onnoweb No sorry, my fault, it was a typo. I haven't solved yet. — aneuryzm
– aneuryzm, Commented Aug 22, 2011 at 14:36
Is that ";" there - and not a typo - in '#import "SansnuageAppDelegate.h";'? — onnoweb
– onnoweb, Commented Aug 22, 2011 at 14:41

aneuryzm · Accepted Answer · 2011-08-22 15:22:10Z

Ok, so the solution was that I was importing #import "SentencesViewController.h" in the implementation file as well. Very stupid mistake, but the error description didn't help at all.

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