得到“错误:ConstraintLayout中缺少约束". [英] Getting "Error: Missing Constraints in ConstraintLayout"

问题描述

我正在使用Android Studio 3.0.1.每当我在活动屏幕"上拖动按钮或进行其他任何活动时，都会出现以下错误

I am using Android Studio 3.0.1. Whenever I drag button or do any other activity on my Activity Screen it gives me the following error

ConstraintLayout中缺少约束"

Missing Constraints in ConstraintLayout"

我需要针对此问题的永久修复.请帮我.

I need a permanent fix for this issue. Please help me.

推荐答案

在设计上方的面板中，您会看到一个棒型工具，当您将鼠标悬停在其上时，它将显示推断约束，只需单击它，然后您的问题将得到解决

See in the pallete just above your design you will see a wand type tool, when you will hover over it it will show infer constraint , just click on it and your problem will be solved

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