我有一个Nodejs Web应用程序，当前正在服务器上成功运行。现在，我正在尝试在开发服务器上设置本地副本。

我目前已经像生产服务器中一样安装了Nodejs，NPM和Mongo，但是当我尝试启动节点服务器时出现以下错误

是什么导致此问题？

embah@devsertwo:~/node/nodeapp$ node app.js
fs.js:640
  return binding.open(pathModule._makeLong(path), stringToFlags(flags), mode);
                 ^

Error: ENOENT: no such file or directory, open '/home/embah/node/nodeapp/config/c
onfig.json'
    at Error (native)
    at Object.fs.openSync (fs.js:640:18)
    at Object.fs.readFileSync (fs.js:508:33)
    at Object.<anonymous> (/home/embah/node/nodeapp/config/config.js:4:28)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/home/embah/node/glorby/app.js:13:16)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.runMain (module.js:604:10)
    at run (bootstrap_node.js:394:7)
    at startup (bootstrap_node.js:149:9)
    at bootstrap_node.js:509:3
embah@devsertwo:~/node/nodeapp$