eoIm尝试使用grunt任务运行应用程序，但无法摆脱此错误：
Running "concurrent:clientDevDemo" (concurrent) task
Running "watch:clientDev" (watch) task
Running "nodemon:demoServer" (nodemon) task
Waiting...
[nodemon] v1.2.1
[nodemon] to restart at any time, enter `rs`
[nodemon] watching: demo/server/***/*
[nodemon] starting `node demo/server/app.js`
Loading express server...
Static server running at http://localhost:7676/
events.js:85
throw er; // Unhandled 'error' event
^
Error: listen EADDRINUSE
at exports._errnoException (util.js:746:11)
at Server._listen2 (net.js:1129:14)
at listen (net.js:1155:10)
at Server.listen (net.js:1240:5)
at Object.<anonymous> (/home/leo/dev/vm1/ui/demo/server/app.js:48:34)
at Module._compile (module.js:460:26)
at Object.Module._extensions..js (module.js:478:10)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)
at Function.Module.runMain (module.js:501:10)
有谁知道如何杀死在端口上运行的进程？
由于