Hi Horiuchi,

please try formatting your code with the ``` system as shown in the "Tips for asking questions" Video or the "Markdown Cheatsheet" as this would make it easier for us reading it :)

The Challenge task 1 of 3 asks the question "Let's add animation to the Random Quotes app. A property named 'imageView' has been already defined. Assuming you have images named '01.png','02.png','03.png', create an array of UIImage objects and assign them to the 'animationImages' property of 'imageView'."

• The remarks in the code said: "// Remember 'imageView' is a property // so refer to it as 'self.imageView'", so you might want to use self.imageView.animationImages

• The question states "... you have images named '01.png','02.png','03.png'" - hence you will have to name your images this way.

#import "THViewController.h"

@implementation THViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    // backgroundImage is a local variable
    UIImage *backgroundImage = [UIImage imageNamed:@"background"];
    // imageView is a property
    self.imageView = [[UIImageView alloc] initWithImage:backgroundImage];

    // Add your code below! 
    // Remember 'imageView' is a property 
    // so refer to it as 'self.imageView'
self.imageView.animationImages = [[NSArray alloc] initWithObjects: 
[UIImage imageNamed:@"01.png"], 
[UIImage imageNamed:@"02.png"], 
[UIImage imageNamed:@"03.png"], nil];

}

@end