Error: request for member 'location' in something not a structure or union

I am creating an app where when you touch a pimple it moves to a different location. This is the code that I put:

pimple.locati开发者_高级运维on = (320, 64); 

(I have created an IBOutlet for pimple and connected it)

I get the following error:

request for member 'location' in something not a structure or union

Here is my .m code:

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    UITouch *myTouch = [touches anyObject];

    CGPoint point = [myTouch locationInView:pimple];
    if ( CGRectContainsPoint(pimple.bounds, point) ) {
        [self checkcollision];
    }


}





-(void)checkcollision {

    label.text += 1;    
    pimple.hidden = YES;
    pimple.location = (320, 64);   //the error
    sad.hidden = NO;

    NSURL* popURL = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"pop" ofType:@"mp3"]];
    AudioServicesCreateSystemSoundID((CFURLRef) popURL, &popID);

    AudioServicesPlaySystemSound(popID);
}

Assuming that pimple is a UIImageView object (based on this SO question), you would probably want to change its position by using the center property.

pimple.center = CGPointMake(320, 64);

or

pimple.center = (CGPoint){320, 64};

The location property is (probably) of type CGPoint (a struct), you can't just assign a point value by providing two numbers. You would typically assign it with the helper function CGPointMake:

pimple.location = CGPointMake(320, 64);

or:

CGPoint location; 
location.x = 320;
location.y = 64;
pimple.location = location;