How can I fix this error: "ARC forbids explicit message send of 'release' in Xcode"

I'm trying to make a simple animation image in iPhone from an image array:

- (void)viewDidLoad {
    NSArray *imageArray;
    imageArray = [[NSArray alloc] initWithObjects:
                  [UIImage imageNamed:@"sun1"],
                  [UIImage imageNamed:@"sun2"],
                  nil];
    fadeImage.animationImages = imageArray;
    fadeImage.animationDuration = 1;
    [imageArray release];  //==== HERE IS WHERE I GET THE ERROR ======

How can I fix this?