错误是什么？我该如何解决？

Question

我正在学习颤振。我已经制作了一个应用程序名称聊天 x（标题）。代码如下

import 'package:flutter/material.dart';

void main() => runApp(MyApp());


class MyApp extends StatelessWidget {
  @override
Widget build(BuildContext context) {
return MaterialApp(
  home: Scaffold(
    appBar: AppBar(
      title: Text('Chat X'),
    ),
  body: Card(child: Column(children: <Widget>[
    Text('hey! this one is new');
  ],),),
  ),
);
 }
 }

每当我想调试此代码时，我都会收到此错误

Expected to find ']'.

Answer 1

你不应该有;在文本小部件之后。像这样：

Text('hey! this one is new')

Answer 2

从 Text('hey! this one is new'); 中删除 ; 或者如果您想在 Column

中放置更多小部件，则可以放置 ,

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Chat X'),
        ),
        body: Card(child: Column(children: <Widget>[
            Text('hey! this one is new'),
            Text('hey! this one is second new'),
          ],),),
    ),
    );
  }
}

错误是什么？我该如何解决？

what is the error ? and how can i solve it?

flutter

flutter-test