windows下 Docker启动报错： Error starting userland proxy: /forwards/expose/port returned unexpected status: 500
C:\Users\Administrator>docker start mysql5.7
Error response from daemon: driver failed programming external connectivity on endpoint mysql5.7
(e68f2be5280c3168f2ab73276867c0edc09706078630863522a346a620210f4d): Error starting userland proxy: /forwards/expose/port returned unexpected status: 500 Error: failed to start containers: mysql5.7
解决办法：
1、退出docker，右键图标点击Quit Docker Desktop
2、打开windows任务管理器，找到com.docker.backend.exe 进程并干掉
3、重启docker，双击图标Docker Desktop打开
4、使用docker命令启动MySQL
参考：https://www.cnblogs.com/mzdljgz/p/11935610.html