CODEWITHSUNDEEP
objective-cdelegatesprotocols
Chris
Chris

Reputation: 7310

Protocol declaration not being found

So I have one class CommentViewController.h in which I have 

#import "FirstViewController.h"

@protocol CommentViewControllerDelegate;

@interface CommentViewController : UIViewController {
id <CommentViewControllerDelegate> delegate;
}

 @property (nonatomic, assign) id <CommentViewControllerDelegate> delegate;

- (IBAction)submit:(id)sender;

-(IBAction)cancel:(id)sender;

 @end

@protocol CommentViewControllerDelegate
-(void)commentViewControllerDidFinish:(CommentViewController *)controller;
@end

I synthesized delegate in the implementation

I try to access the protocol in FirstViewController.h:

 #import "CommentViewController.h"
 @interface FirstViewController : UIViewController <CommentViewControllerDelegate>

And in the implantation of FirstViewController :

 - (void)commentViewControllerDidFinish:(CommentViewController *)controller {
 [self dismissModalViewControllerAnimated:YES];
 }

The error appears on this line:

@interface FirstViewController : UIViewController <CommentViewControllerDelegate>

Error: Cannot find protocol declaration for 'CommentViewControllerDelegate'; did you mean 'UISplitViewControllerDelegate'?

Am I missing something? I always have trouble with protocols and delegates.

Upvotes: 1

Views: 1064

Answers (1)

trojanfoe
trojanfoe

Reputation: 122381

You have a loop in your include files.

Remove this line from CommentViewController.h:

#import "FirstViewController.h"

It's not referenced in that header file, and if it were, you could simply put:

@class FirstViewController;

instead of including the whole file.

Upvotes: 7

Related Questions