[angular] error: This is probably not a problem with npm. There is likely additional logging output above

I'm new with react... Well i had the same output:

Starting the development server...

events.js:196
      throw er; // Unhandled 'error' event
      ^

Error: ENOSPC: System limit for number of file watchers reached, watch '/opt/lampp/htdocs/react-tuto/public'
    at FSWatcher.<computed> (internal/fs/watchers.js:168:26)
    at Object.watch (fs.js:1351:34)
    at createFsWatchInstance (/opt/lampp/htdocs/react-tuto/node_modules/chokidar/lib/nodefs-handler.js:38:15)
    at setFsWatchListener (/opt/lampp/htdocs/react-tuto/node_modules/chokidar/lib/nodefs-handler.js:81:15)
    at FSWatcher.NodeFsHandler._watchWithNodeFs (/opt/lampp/htdocs/react-tuto/node_modules/chokidar/lib/nodefs-handler.js:233:14)
    at FSWatcher.NodeFsHandler._handleDir (/opt/lampp/htdocs/react-tuto/node_modules/chokidar/lib/nodefs-handler.js:429:19)
    at FSWatcher.<anonymous> (/opt/lampp/htdocs/react-tuto/node_modules/chokidar/lib/nodefs-handler.js:477:19)
    at FSWatcher.<anonymous> (/opt/lampp/htdocs/react-tuto/node_modules/chokidar/lib/nodefs-handler.js:482:16)
    at FSReqCallback.oncomplete (fs.js:165:5)
Emitted 'error' event on FSWatcher instance at:
    at FSWatcher._handleError (/opt/lampp/htdocs/react-tuto/node_modules/chokidar/index.js:260:10)
    at createFsWatchInstance (/opt/lampp/htdocs/react-tuto/node_modules/chokidar/lib/nodefs-handler.js:40:5)
    at setFsWatchListener (/opt/lampp/htdocs/react-tuto/node_modules/chokidar/lib/nodefs-handler.js:81:15)
    [... lines matching original stack trace ...]
    at FSReqCallback.oncomplete (fs.js:165:5) {
  errno: -28,
  syscall: 'watch',
  code: 'ENOSPC',
  path: '/opt/lampp/htdocs/react-tuto/public',
  filename: '/opt/lampp/htdocs/react-tuto/public'
}
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] start: `react-scripts start`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the [email protected] start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/paulo/.npm/_logs/2019-12-16T16_46_27_856Z-debug.log

I just tried:

sudo npm start

And it worked.

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