文章目錄

• 一、報錯信息
• 二、問題分析
• 三、解決方案

一、報錯信息

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參考 【Flutter】Flutter Gallery 官方示例簡介 博客 ;

Flutter Galley 開源項目運行時 , 部署到手機時 , 報如下錯誤 ;

項目地址 : https://github.com/flutter/gallery

This will generate a JSON format file containing all messages that need to be translated. Launching lib\main.dart on Pixel 2 in debug mode... Running Gradle task 'assembleDebug'... lib/demos/cupertino/cupertino_alert_demo.dart:240:12: Error: Method not found: 'CupertinoModalPopupRoute'.return CupertinoModalPopupRoute<String>(^^^^^^^^^^^^^^^^^^^^^^^^FAILURE: Build failed with an exception.* Where: Script 'Y:\001_DevelopTools\010_Flutter\flutter_windows_2.0.2-stable\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 991* What went wrong: Execution failed for task ':app:compileFlutterBuildDebug'. > Process 'command 'Y:\001_DevelopTools\010_Flutter\flutter_windows_2.0.2-stable\flutter\bin\flutter.bat'' finished with non-zero exit value 1* Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.* Get more help at https://help.gradle.orgBUILD FAILED in 19s Exception: Gradle task assembleDebug failed with exit code 1

二、問題分析

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找不到方法 , 懷疑是使用了落后的 Flutter SDK 版本 , 這里更新到最新的測試版本 ;

https://flutter.dev/docs/development/tools/sdk/releases

三、解決方案

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下載 2.1.0-12.2.pre 版本的 Flutter SDK ;

flutter_windows_2.1.0-12.2.pre-beta.zip

下載后解壓上述 SDK 壓縮包 flutter_windows_2.1.0-12.2.pre-beta.zip ;

解壓后的 Flutter SDK 路徑為 : Y:\001_DevelopTools\010_Flutter\flutter_windows_2.1.0-12.2.pre-beta\flutter ;

在 " File / Settings / Languages & Frameworks / Flutter " 下配置最新版本的 Flutter SDK 路徑 ;

Y:\001_DevelopTools\010_Flutter\flutter_windows_2.1.0-12.2.pre-beta\flutter

在 " File / Settings / Languages & Frameworks / Dart " 下配置最新版本的 Dart SDK 路徑 ;

Y:\001_DevelopTools\010_Flutter\flutter_windows_2.1.0-12.2.pre-beta\flutter\bin\cache\dart-sdk

最終程序運行成功 :

總結

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