安装完Flutter开发环境之后，写了第一个程序：
import 'package:flutter/material.dart';
void main() => runApp(HomePage());
class HomePage extends StatelessWidget{
@override
Widget build(BuildContext context) {
return Text( 'Hello');
}
}
报错：
image.png
改为：
import 'package:flutter/material.dart';
void main() => runApp(HomePage());
class HomePage extends StatelessWidget{
@override
Widget build(BuildContext context) {
return Text(
'Hello',
textDirection: TextDirection.ltr,
);
}
}
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