执行以下命令报错,似乎是-p参数不识别?
$ node src/index.js -p 9999
events.js:167
throw er; // Unhandled 'error' event
^
Error: listen EADDRINUSE 127.0.0.1:9999
at Server.setupListenHandle [as _listen2] (net.js:1335:14)
at listenInCluster (net.js:1383:12)
at doListen (net.js:1509:7)
at process._tickCallback (internal/process/next_tick.js:63:19)
at Function.Module.runMain (internal/modules/cjs/loader.js:745:11)
at startup (internal/bootstrap/node.js:236:19)
at bootstrapNodeJSCore (internal/bootstrap/node.js:560:3)
Emitted 'error' event at:
at emitErrorNT (net.js:1362:8)
at process._tickCallback (internal/process/next_tick.js:63:19)
[... lines matching original stack trace ...]
at bootstrapNodeJSCore (internal/bootstrap/node.js:560:3)