npm run start error

[YerongLi]

This is one of the best discord clone I have seen online, however I met an issue starting the server

Could anyone help me with this?

$ npm run start
Starting the development server...

events.js:353
      throw er; // Unhandled 'error' event
      ^

Error: ENOSPC: System limit for number of file watchers reached, watch '/home/yerong/Documents/Graph_Toolformer/tmp/discord-clone-master-routing/public'
    at FSWatcher.<computed> (internal/fs/watchers.js:218:26)
    at Object.watch (fs.js:1582:34)
    at createFsWatchInstance (/home/yerong/Documents/Graph_Toolformer/tmp/discord-clone-master-routing/node_modules/webpack-dev-server/node_modules/chokidar/lib/nodefs-handler.js:38:15)
    at setFsWatchListener (/home/yerong/Documents/Graph_Toolformer/tmp/discord-clone-master-routing/node_modules/webpack-dev-server/node_modules/chokidar/lib/nodefs-handler.js:81:15)
    at FSWatcher.NodeFsHandler._watchWithNodeFs (/home/yerong/Documents/Graph_Toolformer/tmp/discord-clone-master-routing/node_modules/webpack-dev-server/node_modules/chokidar/lib/nodefs-handler.js:233:14)
    at FSWatcher.NodeFsHandler._handleDir (/home/yerong/Documents/Graph_Toolformer/tmp/discord-clone-master-routing/node_modules/webpack-dev-server/node_modules/chokidar/lib/nodefs-handler.js:429:19)
    at FSWatcher.<anonymous> (/home/yerong/Documents/Graph_Toolformer/tmp/discord-clone-master-routing/node_modules/webpack-dev-server/node_modules/chokidar/lib/nodefs-handler.js:477:19)
    at FSWatcher.<anonymous> (/home/yerong/Documents/Graph_Toolformer/tmp/discord-clone-master-routing/node_modules/webpack-dev-server/node_modules/chokidar/lib/nodefs-handler.js:482:16)
    at FSReqCallback.oncomplete (fs.js:193:5)
Emitted 'error' event on FSWatcher instance at:
    at FSWatcher._handleError (/home/yerong/Documents/Graph_Toolformer/tmp/discord-clone-master-routing/node_modules/webpack-dev-server/node_modules/chokidar/index.js:260:10)
    at createFsWatchInstance (/home/yerong/Documents/Graph_Toolformer/tmp/discord-clone-master-routing/node_modules/webpack-dev-server/node_modules/chokidar/lib/nodefs-handler.js:40:5)
    at setFsWatchListener (/home/yerong/Documents/Graph_Toolformer/tmp/discord-clone-master-routing/node_modules/webpack-dev-server/node_modules/chokidar/lib/nodefs-handler.js:81:15)
    [... lines matching original stack trace ...]
    at FSReqCallback.oncomplete (fs.js:193:5) {
  errno: -28,
  syscall: 'watch',
  code: 'ENOSPC',
  path: '/home/yerong/Documents/Graph_Toolformer/tmp/discord-clone-master-routing/public',
  filename: '/home/yerong/Documents/Graph_Toolformer/tmp/discord-clone-master-routing/public'
}