XIb中使用tableview报错UIViewAlertForUnsatisfiableConstraints

1.使用断点工具并不能找出错误，最后仔细看了下报错信息

2.报错信息

[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. 
(
    "",
    "",
    "",
    "",
    ""
)

Will attempt to recover by breaking constraint 


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

3.分析

 "",
""

第一句代码信息是视图中有个界面的高度为50;
第二句中意思是cell_contentView的高度为49.5;

问题就来了

contentView没有我设置的自视图大，而且我对cell设置了clips to view = YES。
约束就存在了冲突，xcode报错提示。

把cell的高度调大或者view的高度调小解决

   
   
   

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