gistfile1.txt

Apr  6 18:27:22 Alans-MacBook-Pro ConflictingConstraint[37976]: [LayoutConstraints] Unable to simultaneously satisfy constraints.
		Probably at least one of the constraints in the following list is one you don't want. 
		Try this: 
			(1) look at each constraint and try to figure out which you don't expect; 
			(2) find the code that added the unwanted constraint or constraints and fix it. 
		(Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints) 
	(
	    "<NSAutoresizingMaskLayoutConstraint:0x6000002882f0 h=--& v=--& UIButton:0x7fae80d10cc0.width == 0   (active)>",
	    "<NSLayoutConstraint:0x600000287e40 UIButton:0x7fae80d10cc0.width == 100   (active)>"
	)
	
	Will attempt to recover by breaking constraint 
	<NSLayoutConstraint:0x600000287e40 UIButton:0x7fae80d10cc0.width == 100   (active)>
	
	Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
	The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful.