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valueForKeyPath: not found in protocol
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valueForKeyPath: not found in protocol


  • Subject: valueForKeyPath: not found in protocol
  • From: Remco Poelstra <email@hidden>
  • Date: Tue, 16 Nov 2010 11:35:31 +0100

Hi,

I've somewhat the same problem as a recent thread, but I can't fix it with what was suggested in that thread.
I've to following class:
#import <Foundation/Foundation.h>
#import "AudionetCommand.h"
#import "AudionetQueueDelegateProtocol.h"
@interface AudionetCommandQueue : NSObject {
	id <AudionetQueueDelegate> delegate;
}

@property (nonatomic, assign) id <AudionetQueueDelegate> delegate;
- (void) enqueueCommand:(AudionetCommand *)command;
@end
@implementation AudionetCommandQueue
@synthesize delegate;
- (void) enqueueCommand:(AudionetCommand *)command {
  //Lots of code
  if ([[delegate valueForKeyPath:@"audionetDevices.address"] isEqual: []]) {};
}
@end

I get the warning that valueForKeyPath: is not found in the protocols. If I change the instance variable to id <AudionetQueueDelegate,NSKeyValueCoding>, I get the error that the NSKeyValueCoding protocol can not be found. If I also #import <NSKeyValueCodingProtocol.h> than that header file is not found.
How can I fix this?

Kind regards,

Remco Poelstra

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