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[Ubermatik]

// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
    [super viewDidLoad];
	self.gameState = kGameStatePaused;
	pucVelocity = CGPointMake(kPucSpeedX,KPucSpeedY);
	[NSTimer scheduledTimerWithTimeInterval:0.05 target:self selector:@selector(gameLoop) userInfo:nil repeats:YES];
}

-(void) gameLoop {
	if(gameState == kGameStateRunning) {
		
		puc.center = CGPointMake(puc.center.x + pucVelocity.x , puc.center.y + pucVelocity.y);
		
		if(puc.center.x > self.view.bounds.size.width || puc.center.x < 0) {
			pucVelocity.x = -pucVelocity.x;
		}
		
		if(puc.center.y > self.view.bounds.size.height || puc.center.y < 0) {
			pucVelocity.y = -pucVelocity.y;
		}
	} else {
		if (tapToBegin.hidden) {
			tapToBegin.hidden = NO;
		}
	}
	
		if (CGRectIntersectsRect(puc.frame,paddleblue.frame)) {
		if(puc.center.y < paddleblue.center.y) {
			pucVelocity.y = -pucVelocity.y;
			NSLog(@"%f %f",puc.center,paddlegreen.center);
			}
		}
	
		if (CGRectIntersectsRect(puc.frame,paddlegreen.frame)) {
			if(puc.center.y > paddlegreen.center.y) {
			pucVelocity.y = -pucVelocity.y;
			}
		}
		
		//Begin AI
		if (puc.center.y <= self.view.center.y) {
			if(puc.center.x < paddlegreen.center.x) {
				CGPoint compLocation = CGPointMake(paddlegreen.center.x - kCompMoveSpeed, paddlegreen.center.y);
				paddlegreen.center = compLocation;
			}
	
			if(puc.center.x > paddlegreen.center.x) {
				CGPoint compLocation = CGPointMake(paddlegreen.center.x + kCompMoveSpeed, paddlegreen.center.y);
				paddlegreen.center = compLocation;
			} //End AI
		}
	} //End of GameLoop

Again, the line the error comes up in is highlighted in red.