title: Error: EPERM: operation not permitted, unlink 'D:\Sources\**\node_modules\fsevents\node_modules\abbrev\package.json'
body: <p>I just updated <code>npm</code> to <code>5.4.0</code>.<br>
  Now, Whenever I want install a npm package I get the following error:</p>
  
  <pre><code>D:\Sources\DownloadCms\Md.Download\Web.Angular&gt;npm install mds.angular.datetimepicker@latest --save
  npm ERR! path D:\Sources\DownloadCms\Md.Download\Web.Angular\node_modules\fsevents\node_modules\abbrev\package.json
  npm ERR! code EPERM
  npm ERR! errno -4048
  npm ERR! syscall unlink
  npm ERR! Error: EPERM: operation not permitted, unlink 'D:\Sources\DownloadCms\Md.Download\Web.Angular\node_modules\fsevents\node_modules\abbrev\package.json'
  npm ERR!     at Error (native)
  npm ERR!  { Error: EPERM: operation not permitted, unlink 'D:\Sources\DownloadCms\Md.Download\Web.Angular\node_modules\fsevents\node_modules\abbrev\package.jso
  n'
  npm ERR!     at Error (native)
  npm ERR!   stack: 'Error: EPERM: operation not permitted, unlink \'D:\\Sources\\DownloadCms\\Md.Download\\Web.Angular\\node_modules\\fsevents\\node_modules\\ab
  brev\\package.json\'\n    at Error (native)',
  npm ERR!   errno: -4048,
  npm ERR!   code: 'EPERM',
  npm ERR!   syscall: 'unlink',
  npm ERR!   path: 'D:\\Sources\\DownloadCms\\Md.Download\\Web.Angular\\node_modules\\fsevents\\node_modules\\abbrev\\package.json' }
  npm ERR!
  npm ERR! Please try running this command again as root/Administrator.
  
  npm ERR! A complete log of this run can be found in:
  npm ERR!     C:\Users\Mohammad\AppData\Roaming\npm-cache\_logs\2017-09-03T03_25_50_432Z-debug.log
  </code></pre>
  
  <p>I'm dead sure, run <code>CMD</code> as administrator.</p>
  
  <p>Also I checked <code>D:\Sources\DownloadCms\Md.Download\Web.Angular\node_modules\fsevents\node_modules\abbrev\package.json\</code>, <code>package.json</code> is not exist in path !</p>
  
  <p><strong>Edit:</strong>
  Upgrade to v5.4.1, still get the same error, even cannot work around with --no-optional :-(</p>