iOS_Error_Collection

Layout:

1. Unable to simultaneously satisfy constraints.

2019-02-20 10:23:28.043637+0800 HYHY_iOS[327:14828] [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:0x280cea530 UIView:0x10ca72e10.height == 60   (active)>",
    "<NSLayoutConstraint:0x280cea710 HYHY_iOS.JMTextfield:0x10ca73f70.height == 60   (active)>",
    "<NSLayoutConstraint:0x280cea8f0 HYHY_iOS.JMTextfield:0x10ca78650.height == 60   (active)>",
    "<NSLayoutConstraint:0x280ceaee0 UIView:0x10ca73d90.height == 30   (active)>",
    "<NSLayoutConstraint:0x280c906e0 UIStackView:0x10ca72c10.height == 230   (active)>",
    "<NSLayoutConstraint:0x280c91d10 'UISV-canvas-connection' UIStackView:0x10ca72c10.top == UIView:0x10ca72e10.top   (active)>",
    "<NSLayoutConstraint:0x280c91d60 'UISV-canvas-connection' V:[UIView:0x10ca73d90]-(0)-|   (active, names: '|':UIStackView:0x10ca72c10 )>",
    "<NSLayoutConstraint:0x280c91e00 'UISV-spacing' V:[UIView:0x10ca72e10]-(5)-[HYHY_iOS.JMTextfield:0x10ca73f70]   (active)>",
    "<NSLayoutConstraint:0x280c91e50 'UISV-spacing' V:[HYHY_iOS.JMTextfield:0x10ca73f70]-(5)-[HYHY_iOS.JMTextfield:0x10ca78650]   (active)>",
    "<NSLayoutConstraint:0x280c91f40 'UISV-spacing' V:[HYHY_iOS.JMTextfield:0x10ca78650]-(5)-[UIView:0x10ca73d90]   (active)>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x280cea8f0 HYHY_iOS.JMTextfield:0x10ca78650.height == 60   (active)>

Solved:

着重解决Will attempt to recover by breaking constraint下面的约束，一般是和系统约束有冲突，把有问题的约束的priority(优先权) 调低，就可以解决问题了。放任不管也不会影响程序运行，但是这种错误警告越多，就会增加程序渲染速度阻塞主线程，出现卡顿