[Xcode] AutoLayout Error - Unable to simultaneously satisfy constraints

[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. 
(
    "<NSLayoutConstraint:0x600001e77d90 UIButton:0x7f9a77b3cd20.height == 25   (active)>",
    "<NSLayoutConstraint:0x600001e4c320 UILayoutGuide:0x600000477560'UIViewSafeAreaLayoutGuide'.bottom == UIButton:0x7f9a77b3cd20.bottom + 312   (active)>",
    "<NSLayoutConstraint:0x600001e4c870 V:[UIView:0x7f9a77b384c0]-(34)-[UIView:0x7f9a77b38630]   (active)>",
    "<NSLayoutConstraint:0x600001e4c8c0 V:[UIView:0x7f9a77b38630]-(391)-|   (active, names: '|':UIView:0x7f9a77a13a50 )>",
    "<NSLayoutConstraint:0x600001e4ca50 V:[UIView:0x7f9a77b384c0]-(70)-[UIButton:0x7f9a77b3cd20]   (active)>",
    "<NSLayoutConstraint:0x600001e4c0a0 'UIViewSafeAreaLayoutGuide-bottom' V:[UILayoutGuide:0x600000477560'UIViewSafeAreaLayoutGuide']-(0)-|   (active, names: '|':UIView:0x7f9a77a13a50 )>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x600001e77d90 UIButton:0x7f9a77b3cd20.height == 25   (active)>

Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKitCore/UIView.h> may also be helpful.