Masonry布局遇到的问题

2017-11-07 11:35:11.615 xxxxxxxxxx[20905:10828825] 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. 
(
    "<MASLayoutConstraint:0x1003f9520 YZLoopView:0x1003dad50.top == HeaderView:0x1003c5220.top>",
    "<MASLayoutConstraint:0x108301130 YZLoopView:0x1003dad50.height == HeaderView:0x1003c5220.height * 0.472512>",
    "<MASLayoutConstraint:0x108301cd0 QuickEntryView:0x1003803c0.height == 210.864>",
    "<MASLayoutConstraint:0x108301e10 QuickEntryView:0x1003803c0.top == YZLoopView:0x1003dad50.bottom>",
    "<MASLayoutConstraint:0x108302970 TitleADView:0x100482540.top == QuickEntryView:0x1003803c0.bottom + 6.624>",
    "<MASLayoutConstraint:0x108302af0 TitleADView:0x100482540.height == 37.536>",
    "<MASLayoutConstraint:0x1004a6810 TitleADView:0x100482540.bottom == HeaderView:0x1003c5220.bottom - 6.624>",
    "<NSLayoutConstraint:0x1004a7f80 HeaderView:0x1003c5220.height == 458.16>"
)

Will attempt to recover by breaking constraint 
<MASLayoutConstraint:0x108301cd0 QuickEntryView:0x1003803c0.height == 210.864>

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.

约束设置有问题的时候报这个提示,同时设置了高度和上下边距或者同时设置了宽度和左右边距