?這個報錯有些長：

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:0x600000096580 H:[UIButton:0x7fc8eb408a50'Button']-(2)-|?? (active, names: '|':UIView:0x7fc8eb40d330 )>",
??? "<NSLayoutConstraint:0x600000096670 H:[UIButton:0x7fc8eb408a50'Button']-(3)-|?? (active, names: '|':UIView:0x7fc8eb40d330 )>"
)

Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x600000096670 H:[UIButton:0x7fc8eb408a50'Button']-(3)-|?? (active, names: '|':UIView:0x7fc8eb40d330 )>

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.

?

我的報錯原因： 就是同意的邊距連了兩條線（2 conflicting constrains）;

???????????????????

?????????????????? 點擊 黃色的警告（??），找到?jīng)_突的線，檢查，很容易找到問題。

?

?　　　　　　 之前好像是直接顯示紅色報錯的，now是 黃色警告？

轉(zhuǎn)載于:https://www.cnblogs.com/code-Officer/p/6258669.html

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