NSGenericException', reason: 'Unable to install constraint on view

Question

Terminating app due to uncaught exception \'NSGenericException\'

Terminating app due to uncaught exception \'NSGenericException\', reason: \'Unable to

Answer 1

I had the same crash, and it turned out to be a floating-point precision problem with constraint multiplier values. I converted all my constraint multipliers to nice floating-point values (e.g. 0.375 instead of 0.35) and that fixed the crash.

AutoLayout: removeFromSuperview / removeConstraints throws exception and crashes hard