equalto

快速定位约束以及解决⽅法

错写成width语法错误报错

Asrtionfailurein-[MASViewConstraintaddConstraintWithLayoutAttribute:],MASViewConstraint.m:213

2021-02-2516:30:12.261136+0800Masonry[47431:9690200]***Terminatingappduetouncaughtexception

'NSInternalInconsistencyException',reason:'Attributesshouldbechainedbeforedefiningtheconstraintrelation'

o后⾯关联的view⾮同级视图或⾮者⽗视图报错

Asrtionfailurein-[MASViewConstrainttSecondViewAttribute:],MASViewConstraint.m:135

2021-02-2516:33:20.327230+0800Masonry[48246:9697968]***Terminatingappduetouncaughtexception

'NSInternalInconsistencyException',reason:'attemptingtoaddunsupportedattribute:'

3.不能同时满⾜约束条件。报错

[LayoutConstraints]Unabletosimultaneouslysatisfyconstraints.

_equalTo(UIEdgeIntsMake(10,10,10,10));可以都为正数

o().(-10);负数

o().(-10);负数

1.可以添加优先级解决2.删掉有冲突的约束3.检查⽗视图width或⾼是否为0

断点定位约束冲突控件

symobol：UIViewAlertForUnsatisfiableConstraints

debuggercommand：po[[[UIApplicationsharedApplication]windows].firstObjectrecursiveDescription]

或po[[UIWindowkeyWindow]_autolayoutTrace]po[[UIWindowkeyWindow]_autolayoutTrace]