2019-01-20 19:26:59.896388+0100 Jot[5072:1339146] [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:0x2826aec10 UIButton:0x103d21b60.width == 24   (active)>",
    "<NSLayoutConstraint:0x2826aed50 H:|-(0)-[UILabel:0x103d21390'My first list!']   (active, names: '|':UITableViewCellContentView:0x103d10710 )>",
    "<NSLayoutConstraint:0x2826af660 H:[UILabel:0x103d21390'My first list!']-(0)-[UIButton:0x103d21b60]   (active)>",
    "<NSLayoutConstraint:0x2826af570 H:[UIButton:0x103d21b60]-(311)-|   (active, names: '|':UITableViewCellContentView:0x103d10710 )>",
    "<NSLayoutConstraint:0x2826aef30 'UIView-Encapsulated-Layout-Width' UITableViewCellContentView:0x103d10710.width == 311   (active)>"
)

Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x2826aec10 UIButton:0x103d21b60.width == 24   (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.
2019-01-20 19:26:59.899081+0100 Jot[5072:1339146] [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:0x2826af930 H:|-(18)-[UILabel:0x103d21870'Just a list to test']   (active, names: '|':UITableViewCellContentView:0x103d10710 )>",
    "<NSLayoutConstraint:0x2826af5c0 H:[UILabel:0x103d21870'Just a list to test']-(0)-[UIButton:0x103d21b60]   (active)>",
    "<NSLayoutConstraint:0x2826af570 H:[UIButton:0x103d21b60]-(311)-|   (active, names: '|':UITableViewCellContentView:0x103d10710 )>",
    "<NSLayoutConstraint:0x2826aef30 'UIView-Encapsulated-Layout-Width' UITableViewCellContentView:0x103d10710.width == 311   (active)>"
)

Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x2826af5c0 H:[UILabel:0x103d21870'Just a list to test']-(0)-[UIButton:0x103d21b60]   (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.