This one appears when someone is trying to put nil
in [UIImage imageNamed:]
Add symbolic breakpoint for [UIImage imageNamed:]
Add $arg3 == nil
condition on Simulator, $r0 == nil
condition on 32-bit iPhone, or $x2 == nil
on 64-bit iPhone.
Run your application and see where debugger will stop.
P.S. Keep in mind this also happens if image name is empty string. You can check this by adding [(NSString*)$x2 length] == 0
to the condition.