I am getting an error while trying to view the system info of my Joomla site. I am on Joomla 3.4.5.The error is as shown

Fatal error: Class 'JPlatform' not found in /public_html/mywebsite/administrator/components/com_admin/models/sysinfo.php on line 138.

What could be the cause of this error? Any help to resolve this would be appreciated.

1 Answer 1


At a guess, there has been an issue somewhere in your upgrades. I'd simply suggest:

  1. Downloading a fresh copy of Joomla 3.x
  2. Extract administrator/components/com_admin
  3. Zip it up
  4. Upload it to your server
  • I did just that but no success. I even uploaded joomla 3.4.4 to 3.4.5 update but it's not working at all
    – Muteshi
    Dec 7, 2015 at 15:49
  • Could you try installing the full 3.4.5 update package (9mb) via your Extension Manager please: github.com/joomla/joomla-cms/releases/download/3.4.5/…
    – Lodder
    Dec 7, 2015 at 15:53
  • This finally worked and the site is working well. I appreciate bro
    – Muteshi
    Dec 8, 2015 at 5:29

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.