Image missing from distribution - ios

Question

I am having an issue where an image is missing, but only when built for distribution. Also, it only occurs on the iPhone 5, but not for the iPhone 4 or 4S.
This is a screenshot when built for development, on the simulator.
And this is a screenshot when built for distribution, on an actual iPhone 5.
I have a single target for both development and distribution. Relevant code:
int deviceNumber = 4;
if([UIScreen mainScreen].bounds.size.height > 500)
deviceNumber = 5;
MYIntroductionView *introductionView = [[MYIntroductionView alloc] initWithFrame:CGRectMake(0.0, 0.0, self.view.bounds.size.width, self.view.bounds.size.height) panels:#[panel1,panel2,panel3]];
if(deviceNumber == 4){
[introductionView setBackgroundImage:[UIImage imageNamed:#"One Degree_Iphone4_Background.png"]];
}
else{
[introductionView setBackgroundImage:[UIImage imageNamed:#"One Degree_Iphone5_Background.png"]];
}
And within MyIntroductionView.m, the relevant code is:
-(void)setBackgroundImage:(UIImage *)backgroundImage{
self.BackgroundImageView.image = backgroundImage;
}
-(void)buildBackgroundImage{
self.BackgroundImageView = [[UIImageView alloc] initWithFrame:self.frame];
self.BackgroundImageView.backgroundColor = [UIColor clearColor];
self.BackgroundImageView.contentMode = UIViewContentModeScaleToFill;
self.BackgroundImageView.autoresizesSubviews = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
[self addSubview:self.BackgroundImageView];
}
buildBackgroundImage is called within the init function.

Answer 1

I'm not 100% sure this is still the case but I know it used to be:
The iOS Simulator is not case-sensitive with regard to external filenames (such as your images). So if the image is named "myImage.png" and your program asks for "MyImage.png", the simulator will correctly find and load the image.
However when you try and run it on the device, it is case sensitive, and will not accept the incorrectly-cased file.
So double check that your capitalization of the file itself is identical to what you're asking for in your program. Hopefully that will fix your issue right up.