出现调用栏时出现约束错误

Question

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如何在出现调用栏时更正错误限制。隐藏时我没有这个问题。

我有这个错误

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:0x7fc4ba591630 V:|-(20)-[UIInputSetContainerView:0x7fc4ba58f310]   (Names: '|':UITextEffectsWindow:0x7fc4bc17b950 )>",

    "<NSLayoutConstraint:0x7fc4bc157c10 'UIInputWindowController-top' V:|-(0)-[UIInputSetContainerView:0x7fc4ba58f310]   (Names: '|':UITextEffectsWindow:0x7fc4bc17b950 )>"

)


Will attempt to recover by breaking constraint

<NSLayoutConstraint:0x7fc4ba591630 V:|-(20)-[UIInputSetContainerView:0x7fc4ba58f310]   (Names: '|':UITextEffectsWindow:0x7fc4bc17b950 )> 

由于