Peter Livesey

It's crashing on that 3rd line right? Where is `[StoriesASDetailViewController initWithStory:]` defined in your project? I assume it's in the main app bundle? My guess is for some reason that...

Could you send a full stack trace of the crash? The other thing I was going to suggest was ensuring that the file was added to the target, but looks...

Another thing to try (not sure if this will work), when when you get this error: failed: caught "NSInvalidArgumentException", "-[StoriesASDetailViewController initWithStory:]: unrecognized selector sent to instance 0x7fa5fbe07ce0" ``` po [0x7fa5fbe07ce0...

Also, should include this in the Sample App

Here is some code which I think should produce an ambiguous layout: ``` NSDictionary *viewsDictionary = @{ @"view1": view1, @"view2": view2 }; [superview addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-[view1]-|" options:0 metrics:nil views:viewsDictionary]]; [superview addConstraints:[NSLayoutConstraint...

For others looking at this ticket, I have managed to reproduce ambiguous layout errors in another project. I haven't updated the unit tests in the library yet, but the check...