Unable to bind to http://localhost:xxxx on the IPv4 loopback interface: '以一种访问权限不允许的方式做了一个访问套接字的尝试。

这个错误大概率是端口冲突， 这里不再赘述。具体(参考https://www.cnblogs.com/zhengdongdong/p/12001152.html)

我这边的原因是运行端口在被排除端口范围中(参考https://gsw945.com/index.php/archives/33/) cmd运行 

netsh interface ipv4 show excludedportrange protocol=tcp

可以查看范围。然后重启netstat服务即可解决

net stop winnat
netsh interface ipv4 show excludedportrange protocol=tcp
net start winnat
netsh interface ipv4 show excludedportrange protocol=tcp

net stop winnat netsh interface ipv4 show excludedportrange protocol=tcp net start winnat netsh interface ipv4 show excludedportrange protocol=tcp