flutter 更新 3.9.0遇到的问题

2023-04-06 本文已影响0人匠人plus

问题：新建项目卡住
解决：换源，并配置到环境变量
问题：Flutter assets will be downloaded from https://storage.flutter-io.cn. Make sure you trust this source!
解决：忽略不影响
问题：Build failed due to use of deprecated Android v1 embedding.
解决：使用了flutter v2的sdk编译项目，而你的项目是旧的v1时候开发的,
Upgrading pre 1.12 Android projects · flutter/flutter Wiki (github.com)
问题：pub get failed exit code: 69
解决：查看flutter doctor，修复问题
问题： Windows Version (Unable to confirm if installed Windows version is 10 or greater)
解决：切换flutter渠道
[1] 在cmd输入flutter channel 查看自己的flutter channel版本
[2] 输入flutter channel master，将flutter版本切换为master
[3]输入flutter upgrade 确保flutter更新到了最新版本
[4]输入 flutter doctor 再次检查是否解决
问题：flutter assemble --output directory is required for assemble.
解决：
问题：flutter Failed to download

https://storage.flutter-io.cn/flutter_infra_release/flutter/d492b8b3a56729397743957de82be7cc1c6f4c6d/windows-x64-debug/w
indows-x64-flutter.zip. Ensure you have network connectivity and then try again.
Exception: 503

解决：检查是否有代理，或者检查网络

问题：flutter run andorid 报错Target file "android" not found
解决：flutter -d b7ec9ed0 run
问题：Exception in thread "main" java.net.ConnectException: Connection timed out: connect
解决：连接超时，是因为distributionUrl的网址被墙了，所以连接的时候总是连接不上。添加阿里镜像可以解决问题。

maven { url 'https://maven.aliyun.com/repository/google' }
maven { url 'https://maven.aliyun.com/repository/central' }
maven { url 'https://maven.aliyun.com/repository/jcenter' }
maven { url 'https://maven.aliyun.com/nexus/content/groups/public' }

问题：flutter create 指令
解决： flutter create --org com.chatgpt.client chatgpt_client
问题：flutter run 指令
解决：flutter -d b7ec9ed0 run
问题：No file or variants found for asset: messages.json.
解决：检查assets下message.json是否存在，
检查pubspec.yaml 下assets: - assets/是否正确
问题：flutter doctor 卡住
解决：等待，一般不会特别久
问题：java.lang.NoClassDefFoundError: org/jetbrains/kotlin/gradle/plugin/KotlinBasePlugin
解决：kotlin插件版本错误，最新版的1.8.20移除该类
kotlin 插件与agp的对应关系，可以查询
kotlin-gradle-plugin远程仓库
或者官方说明
Configure a Gradle project | Kotlin Documentation (kotlinlang.org)
问题：The constructor being called isn't a const constructor.
解决：dart新版本的语法检查导致，Diagnostic messages | Dart，
增加构造函数const Home({super.key});或者使用StatefulWidget，
问题：Navigator operation requested with a context that does not include a Navigator
解决：检查代码，main中需要StatelessWidget，home为StatefulWidget
问题：可点击范围太小
解决：behavior: HitTestBehavior.opaque,或者用背景色填充
问题：Unsupported operation: Platform._operatingSystem
解决：web平台优先判断
问题：cannot modify unmodifiable map
解决：未定位，修改代码解决
问题：Trying to load an image from another domain
解决：flutter run -d chrome --web-renderer html
问题：flutter Web 项目网络请求报 XMLHttpRequest error
解决：

找到flutter sdk目录
然后找到flutter\packages\flutter_tools\lib\src\web\chrome.dart文件并打开
找到'--disable-extensions'位置，然后添加'--disable-web-security'
另外还需要到flutter\bin\cache目录下，删除flutter_tools.stamp和flutter_tools.snapshot的文件，否则改动不生效

flutter 更新 3.9.0遇到的问题

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