1.An InputDecorator, which is typically created by a TextField, cannot have an unbounded width

An InputDecorator, which is typically created by a TextField, cannot have an unbounded width.
This happens when the parent widget does not provide a finite width constraint. For example, if the InputDecorator is contained by a Row, then its width must be constrained. An Expanded widget or a SizedBox can be used to constrain the width of the InputDecorator or the TextField that contains it.
‘package:flutter/src/material/input_decorator.dart’:
Failed assertion: line 959 pos 7: ‘layoutConstraints.maxWidth < double.infinity’

我的布局是在Row里包了一个TextField

解决方法:在TextFiled外部包一层Expanded
参考链接

2.Divider不显示

Divider
对于Divider , 需要使用SizeBox 容器包裹, 并且设置一定的width, 否则直接在COntainer里面设置width ,也不起效果

VerticalDivider
对于VerticalDivider, 需要用COntainer容器包裹, 并且设置一定的Height, 否则看不出UI 效果

参考链接

3.RenderFlex children have non-zero flex but incoming height constraints are unbounded.

参考链接

4 Waiting for another flutter command to release the startup lock

解决方法:

1. 删除pubspec.lock
2. 杀掉dart进程
3. 重新执行pub get指令

ide编译一直卡在Running Gradle task ‘assembleDebug’

解决方法:替换国内镜像

参考链接