iphone - Xode build warning and "method not found in protocol" when method signature does exist -

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when try invoke instance of class implements particular protocol, warnings method not being found in protocol's signature.

warning: '-requestcompleted:requesttype:' not found in protocol(s) warning: 'nsobject' may not respond '-requestcompleted:requesttype:'

i couldn't see reason warning copied these classes no changes separate project. when build new project, no warnings generated.

when execute code in original project, works fine -- it's warnings shown during build , want them go away.

i've tried cleaning build targets , removing files in build directory. not seeing that's causing warning?

// file one

@protocol responseprotocol  - (void)requestcompleted:(nsdictionary *)responsedata requesttype:(connrequesttype)lastrequesttype;  @end

how i'm calling it:

@interface baseclass : nsobject       __weak nsobject <responseprotocol>  *delegate;       }  - (void)dosomething;  @end  @implementation baseclass  - (void)dosomething {     sel aselector = @selector(requestcompleted:requesttype:)     if ((delegate != nil) && [delegate respondstoselector:aselector])     {         connrequesttype arequesttype = ...;         nsdictionary *aresponsedata = [nsdictionary dictionary];          // following line generates warnings:         [delegate requestcompleted:aresponsedata requesttype:arequesttype];     }  }  @end

make sure importing proper header file in baseclass.h file:

#import "responseprotocol.h"

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