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flutter安装配置笔记(Mac OS适用)

flutter-dart安装配置笔记

1、去官网下载flutterSDK,网站地址:https://flutterchina.club/
2、解压SDK包到你想要放置的地址,如~ or 文稿 or /Applications
3、环境变量配置:MacOS环境变量配置
vim ~/.bash_profile(进入配置文件,i为输入 ESC退出 :wq 为保存退出)

添加flutter环境变量一下语句:

export FLUTTER_HOME=flutter文件夹地址(为你放置flutter的文件夹地址)
export PATH=$PATH:$FLUTTER_HOME/bin
export PATH=$PATH:$FLUTTER_HOME/bin/cache/dart-sdk/bin

添加dart环境变量:

export PATH=${PATH}:flutter文件夹地址/bin/cache/dart-sdk/bin

flutter项目会依赖一些东西,在国内下载这些依赖会有一些慢,所以我们可以将它们的安装源换成国内的(也就是设置国内的镜像) macOS或者Linux操作系统,依然是编辑~/.bash_profile文件

添加国内镜像变量:

export PUB_HOSTED_URL=https://pub.flutter-io.cn
export FLUTTER_STORAGE_BASE_URL=https://storage.flutter

注意: 此镜像为临时镜像,并不能保证一直可用,大家可以参考详情请参考 https://flutter.dev/community/china 以获得有关镜像服务器的最新动态。

保存后退出,并在终端输入:

source ~/.bash_profile  //更新配置文件

检测是否配置成功:

dart --version
flutter --version
flutter doctor //可检测有哪些配置安装好,哪些配置没有安装

4、关于VSCode插件的安装

1.flutter(必须)<br/>
2.dart(必须)<br/>
3.code runner(运行插件,可右键运行程序和使用快捷键)<br/>

5、如果发生如下错误,其实是VSCode dart代码没有Cmd+s保存,保存之后再运行错误消失

Dart_LoadScriptFromKernel: The binary program does not contain 'main'.

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