我在 mac 运行 anyproxy 为啥总是说端口监听报错呢？看网上都说端口被占用，但是我 lsof 查看端口也没有查看到任何信息 我是通过 node npm 安装的

anyproxy
[AnyProxy Log][2018-07-02 10:52:56]: Http proxy started on port 8001
[AnyProxy Log][2018-07-02 10:52:56]: web interface started on port 8002
[AnyProxy ERROR][2018-07-02 10:52:56]: websocket error, Error: listen EADDRINUSE :::8002
[AnyProxy Log][2018-07-02 10:52:56]: error in websocket proxy: listen EADDRINUSE :::8001,
Error: listen EADDRINUSE :::8001
at Server.setupListenHandle [as _listen2] (net.js:1327:14)
at listenInCluster (net.js:1375:12)
at Server.listen (net.js:1462:7)
at async.series.tipText (/usr/local/lib/node_modules/anyproxy/proxy.js:205:32)
at /usr/local/lib/node_modules/anyproxy/node_modules/async/lib/async.js:607:21
at /usr/local/lib/node_modules/anyproxy/node_modules/async/lib/async.js:246:17
at iterate (/usr/local/lib/node_modules/anyproxy/node_modules/async/lib/async.js:146:13)
at /usr/local/lib/node_modules/anyproxy/node_modules/async/lib/async.js:157:25
at /usr/local/lib/node_modules/anyproxy/node_modules/async/lib/async.js:248:21
at /usr/local/lib/node_modules/anyproxy/node_modules/async/lib/async.js:612:34
error happened in proxy websocket: { Error: listen EADDRINUSE :::8001
at Server.setupListenHandle [as _listen2] (net.js:1327:14)
at listenInCluster (net.js:1375:12)
at Server.listen (net.js:1462:7)
at async.series.tipText (/usr/local/lib/node_modules/anyproxy/proxy.js:205:32)
at /usr/local/lib/node_modules/anyproxy/node_modules/async/lib/async.js:607:21
at /usr/local/lib/node_modules/anyproxy/node_modules/async/lib/async.js:246:17
at iterate (/usr/local/lib/node_modules/anyproxy/node_modules/async/lib/async.js:146:13)
at /usr/local/lib/node_modules/anyproxy/node_modules/async/lib/async.js:157:25
at /usr/local/lib/node_modules/anyproxy/node_modules/async/lib/async.js:248:21
at /usr/local/lib/node_modules/anyproxy/node_modules/async/lib/async.js:612:34
errno: 'EADDRINUSE',
code: 'EADDRINUSE',
syscall: 'listen',
address: '::',
port: 8001 }
^Z
[6] + 19729 suspended anyproxy
➜ ~ lsof -i:8001
➜ ~ lsof -i:8002