Useful or not, from you.
v2ray-core 不是说支持多协议吗??????
"inbounds": [
    {
      "port": 1080,
      "listen": "0.0.0.0",
      "protocol": "socks"
    },
    {
      "port": 1080,
      "listen": "0.0.0.0",
      "protocol": "http"
    }
  ]

Failed to start v2ray.com/core/app/proxyman/inbound: failed to listen TCP on 1080 > v2ray.com/core/transport/internet: failed to listen on address: 0.0.0.0:1080 > listen tcp 0.0.0.0:1080: bind: Only one usage of each socket address (protocol/network address/port) is normally permitted.

That's a useful answer
Without any help

2019/06/02 20:38:00 [Warning] v2ray.com/core: V2Ray 4.19 started 2019/06/02 20:38:11 tcp:127.0.0.1:62665 rejected v2ray.com/core/proxy/socks: unknown Socks version: 71 2019/06/02 20:38:11 tcp:127.0.0.1:62666 rejected v2ray.com/core/proxy/socks: unknown Socks version: 71 2019/06/02 20:38:11 tcp:127.0.0.1:62667 rejected v2ray.com/core/proxy/socks: unknown Socks version: 71 2019/06/02 20:38:11 tcp:127.0.0.1:62668 rejected v2ray.com/core/proxy/socks: unknown Socks version: 71 2019/06/02 20:38:23 tcp:127.0.0.1:62676 accepted tcp:www.google.com:443 2019/06/02 20:38:32 tcp:127.0.0.1:62681 accepted tcp:id.google.com:443 2019/06/02 20:39:36 tcp:127.0.0.1:62683 accepted tcp:clients4.google.com:443 2019/06/02 20:47:47 tcp:127.0.0.1:62764 rejected v2ray.com/core/proxy/socks: unknown Socks version: 71 2019/06/02 20:47:47 tcp:127.0.0.1:62765 rejected v2ray.com/core/proxy/socks: unknown Socks version: 71 2019/06/02 20:47:47 tcp:127.0.0.1:62766 rejected v2ray.com/core/proxy/socks: unknown Socks version: 71 2019/06/02 20:47:47 tcp:127.0.0.1:62767 rejected v2ray.com/core/proxy/socks: unknown Socks version: 71 2019/06/02 20:47:47 tcp:127.0.0.1:62768 rejected v2ray.com/core/proxy/socks: unknown Socks version: 71 2019/06/02 20:47:47 tcp:127.0.0.1:62769 rejected v2ray.com/core/proxy/socks: unknown Socks version: 71 2019/06/02 20:47:47 tcp:127.0.0.1:62770 rejected v2ray.com/core/proxy/socks: unknown Socks version: 71 2019/06/02 20:47:47 tcp:127.0.0.1:62771 rejected v2ray.com/core/proxy/socks: unknown Socks version: 71 2019/06/02 20:47:47 tcp:127.0.0.1:62772 rejected v2ray.com/core/proxy/socks: unknown Socks version: 71 2019/06/02 20:47:47 tcp:127.0.0.1:62773 rejected v2ray.com/core/proxy/socks: unknown Socks version: 71 2019/06/02 20:48:04 tcp:127.0.0.1:62775 accepted tcp:clients4.google.com:443 2019/06/02 20:52:55 tcp:127.0.0.1:62827 accepted tcp:4.2.2.2:53