iphone - 找不到 'xxxxx' 的协议(protocol)声明；你是说 'yyyyy'

Question

我在 Xcode 项目中有多个协议(protocol)，它会给出这样的错误。帮我错误如:-> 找不到“ButtonDelegate”的协议(protocol)声明您是说“CustomDelegate”吗？提前致谢

委托(delegate)头文件

#import <UIKit/UIKit.h>
#import "Constant.h"

@protocol ButtonDelegate <NSObject>
-(void)ChatButtonClicked;
@end

@interface DonttreadonmeCell : UITableViewCell<UIGestureRecognizerDelegate,UITextViewDelegate>{

id <ButtonDelegate> Buttondelegate;

 .h File

#import <UIKit/UIKit.h>
#import <Twitter/Twitter.h>
#import "JSONParsing.h"
#import "Facebook.h"
#import "DonttreadonmeCell.h"
#import "Constant.h"



 @class DonttreadonmeCell;

    @interface BookTextPeregraphselectedViewController :   UIViewController<MFMailComposeViewControllerDelegate,FBSessionDelegate,FBRequestDelegate,ButtonDelegate,FBLoginDialogDelegate,FBDialogDelegate,JSONParsingDelegate,UITableViewDataSource,UITableViewDelegate,UIGestureRecognizerDelegate,UITextViewDelegate>{

Answer 1

我在导入文件的顶部声明了我的协议(protocol)声明部分...感谢上帝，它成功了。

  @protocol ButtonDelegate <NSObject>
-(void)ChatButtonClicked;
@end


#import <UIKit/UIKit.h>
#import "Constant.h"

像这样