无法同时满足 Swift 中的约束运行时错误

Question

我的 ios(UIKit) 应用程序在运行时收到此错误。 它来自UITableView 。 该应用程序运行时不会出现约束错误并具有预期的行为。

我已经看到有关相同错误的其他问题，但我应该保留这个错误吗？

错误部分是抱怨我的两个UITableView通过一个单元格连接（第一个表使用 1.6 作为纵横比，第二个视图使用 0.55 作为宽度/大小）。 我不确定如何解决这个问题，因为没有问题，而且这些视图是分开的。

[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:0x600001575860 UIImageView:0x7f8795f474f0.width == 1.6*UIImageView:0x7f8795f474f0.height   (active)>",
    "<NSLayoutConstraint:0x600001575770 V:|-(10)-[UIStackView:0x7f8795f47080]   (active, names: '|':UITableViewCellContentView:0x7f8795f46b50 )>",
    "<NSLayoutConstraint:0x600001575810 V:[UIStackView:0x7f8795f47080]-(10)-|   (active, names: '|':UITableViewCellContentView:0x7f8795f46b50 )>",
    "<NSLayoutConstraint:0x600001575950 UIImageView:0x7f8795f474f0.width == 0.55*UITableViewCellContentView:0x7f8795f46b50.width   (active)>",
    "<NSLayoutConstraint:0x600001573f20 'UISV-alignment' UILabel:0x7f8795f47210.bottom == UIImageView:0x7f8795f474f0.bottom   (active)>",
    "<NSLayoutConstraint:0x600001575ae0 'UISV-alignment' UILabel:0x7f8795f47210.top == UIImageView:0x7f8795f474f0.top   (active)>",
    "<NSLayoutConstraint:0x60000150cdc0 'UISV-canvas-connection' UIStackView:0x7f8795f47080.top == UILabel:0x7f8795f47210.top   (active)>",
    "<NSLayoutConstraint:0x60000150ce60 'UISV-canvas-connection' V:[UILabel:0x7f8795f47210]-(0)-|   (active, names: '|':UIStackView:0x7f8795f47080 )>",
    "<NSLayoutConstraint:0x600001575cc0 'UIView-Encapsulated-Layout-Height' UITableViewCellContentView:0x7f8795f46b50.height == 154.333   (active)>",
    "<NSLayoutConstraint:0x600001575c70 'UIView-Encapsulated-Layout-Width' UITableViewCellContentView:0x7f8795f46b50.width == 390   (active)>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x600001575860 UIImageView:0x7f8795f474f0.width == 1.6*UIImageView:0x7f8795f474f0.height   (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.

Answer 1

您似乎对同一视图设置了两次约束：

"<NSLayoutConstraint:0x600001575860 UIImageView:0x7f8795f474f0.width == 1.6*UIImageView:0x7f8795f474f0.height (active)>",

"<NSLayoutConstraint:0x600001575950 UIImageView:0x7f8795f474f0.width == 0.55*UITableViewCellContentView:0x7f8795f46b50.width (active)>"