Flutter 踩坑之路

周末玩下flutter，遇到好几个问题

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一、更新了flutter 后原有工程报错

解决：

二、编译报错  ßCheck Github 项目后sdk版本不一样问题

Running "flutter pub get" in flutter_wanandroid...              Because every version of flutter_test from sdk depends on path 1.6.2 and dio >=3.0.0-dev.1 depends on path ^1.6.4, flutter_test from sdk is incompatible with dio >=3.0.0-dev.1.

So, because flutter_wanandroid depends on both dio ^3.0.3 and flutter_test any from sdk, version solving failed.

解决：

更新  flutter upgrade --force   

          flutter doctor 

          flutter run

如果是新项目可以指定版本

如果出现Waiting for another flutter command to release the startup lock..只要进入flutter sdk目录，然后找到bin/cache/lockfile文件，删除后再运行flutter doctor

升级Flutter
https://www.jianshu.com/p/7cd254b847b7

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三、下载Github上开源项目后如果没签名文件记得注释掉release签名相关代码

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四、AndroidStudio 更新flutter后发现不能选择IOS模拟器

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五、类型问题

原因:该返回widget的地方返回了 state

六、flutter 在As里边运行正常，为啥用xcode打开就编译报错了呐

解决：删除pod 重新 pod install

更新Flutter插件之后记得 pod update

七、生命周期执行顺序：

八、Mac版本和真机调式技巧： 对于高版本IPhone 设备，先升级Mac版本，然后再更新Xcode版本到最新

Mac

九、Sdk路径

https://www.jianshu.com/p/75f5de4deb0b?utm_campaign=maleskine&utm_content=note&utm_medium=seo_notes&utm_source=recommendation

十、Error: 'Router' is imported from both

命名不要和系统关键词设置的一样