$ flutter channel master && flutter upgrade
更新你的 flutter1. 安装 Visual Studio 2019, 勾选"Desktop development with C++",detail再多勾选"win10 SDK"和"MSVC v141 x64/x96" 2. 下载“flutter-desktop-embedding”的git仓库,拷贝出里面的"example"文件夹 3. 在"example"下面建立“settings.json”并添加内容: { "dart.env": { "ENABLE_FLUTTER_DESKTOP": true } } 4. > flutter run