使用onTab（）颤振时出错

Question

这是错误消息

compiler message: Unhandled exception:
Crash when compiling file:///C:/Users/Anton/AndroidStudioProjects            /kontaktdaten_app/lib/Pages/landingPage.dart,
at character offset 136:
lib/Pages/landingPage.dart:9:16: Internal problem: Unhandled () → void =>     dart.core::print("Tapped") in defaultTreeNode.
    onTap: () => print("Tapped"),

这是我的代码

import 'package:flutter/material.dart';

class LandingPage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new Material(
      color: Colors.blueAccent,
      child:  InkWell(
        onTap: () => print("Tapped"),
        child: new Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            new Text("Tap to Start!", style: new TextStyle(color: Colors.white, fontSize: 50.0)),
      ],
    ),
  )
);
  }
}

我更新到了最新版本，但它并没有喔。所以请帮助我：D ty