Try correcting....RaisedButton

[a-sapuppo]

FAILURE: Build failed with an exception.

Launching lib/main.dart on HUAWEI VNS L31 in debug mode...
Running Gradle task 'assembleDebug'...
lib/component/route/second_page.dart:41:13: Error: The getter 'RaisedButton' isn't defined for the class '_SecondPageState'.
 - '_SecondPageState' is from 'package:flutter_app_sample/component/route/second_page.dart' ('lib/component/route/second_page.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'RaisedButton'.
            RaisedButton.icon(
            ^^^^^^^^^^^^
...