Incomplete Implementation Errror - objective-c

Question

Keep getting a error on the last line #implementation line saying implementation incomplete. Not sure what the problem is. What would cause this? I posted the header too.
Added the rest of the code from the .m file.
#import "mmViewController.h"
#interface mmViewController ()
-(void)timerFired:(NSTimer*)theTimer;
#end
#implementation mmViewController
#synthesize remainingTime, playerScore, scrambledWord;
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
-(void)viewDidLoad
{
[super viewDidLoad];
//Do any additional setup after loading the view, typically from a nib.
//Initialize the game model
gameModel = [[mmScramblerModel alloc] init];
//Display the time, score and scrambled word
remainingTime.text = [NSString stringWithFormat:#"%i", gameModel.time];
playerScore.text = [NSString stringWithFormat:#"%i", gameModel.score];
scrambledWord.text = [gameModel getScrambledWord];
//Start the game timer
gameTimer = [NSTimer scheduledTimerWithTimeInterval:1.0
target:self
selector:#selector(timerFired:)
userInfo:nil
repeats:YES];
}
-(void) endGameWithMessage:(NSString *)message {
//Call this method to end the game
//Invalidate the timer
[gameTimer invalidate];
//Show an alert with the results
UIAlertView* alert = [[UIAlertView alloc] initWithTitle:#"Game Over!"
message:message
delegate:self
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alert show];
}
-(void) timerFired:(NSTimer *)theTimer {
//The timer fires this method rougly every second
[gameModel timerTick];
if(gameModel.time <= 0){
remainingTime.text = 0;
[self endGameWithMessage:#"You are out of time. You lose!"];
}
else
remainingTime.text = [NSString stringWithFormat:#"%i", gameModel.time];
}
#end
#import <UIKit/UIKit.h>
#import "mmScramblerModel.h"
#interface mmViewController : UIViewController {
mmScramblerModel* gameModel;
NSTimer* gameTimer;
}
-(IBAction)guessTap:(id)sender;
-(void) endGameWithMessage:(NSString*) message;
#property (weak, nonatomic) IBOutlet UITextField * guessText;
#property (weak, nonatomic) IBOutlet UILabel * scrambledWord;
#property (weak, nonatomic) IBOutlet UILabel * remainingTime;
#property (weak, nonatomic) IBOutlet UILabel * playerScore;
#end

Answer 1

Look at the methods listed in the .h file. Now look at the methods that you actually implemented. SInce there are only two, it's pretty easy to notice that you didn't implement one of them.
Implement the guessTap: method.

Answer 2

From your code i can see the interface declaration of
-(IBAction)guessTap:(id)sender;
But you have not implemented this method in .m file

Answer 3

remove the guessTap: method from interface