Flutter 异常解决

Waiting for another flutter command to release the startup lock...

• 进入 flutter sdk 目录中，找到 bin/cache/lockfile 文件，删除即可
• 再执行 flutter doctor，发现错误已解决

error: Building for iOS, but the embedded framework 'App.framework' was built for iOS Simulator. (in target 'Runner' from project 'Runner')

• 删除 App.framework，重新编译即可