Title: WordPress Error – plugin does not have a valid header.
Last modified: September 23, 2016

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# WordPress Error – plugin does not have a valid header.

 *  [jabuddhikap](https://wordpress.org/support/users/jabuddhikap/)
 * (@jabuddhikap)
 * [9 years, 8 months ago](https://wordpress.org/support/topic/wordpress-error-plugin-does-not-have-a-valid-header/)
 * Hi
 * When installed and activating the plugin, wordpress shows “The plugin does not
   have a valid header.”
 * Please refer screenshot [http://pasteboard.co/6vtKWBArD.png](http://pasteboard.co/6vtKWBArD.png)

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Plugin Support [Torsten Landsiedel](https://wordpress.org/support/users/zodiac1978/)
 * (@zodiac1978)
 * [9 years, 8 months ago](https://wordpress.org/support/topic/wordpress-error-plugin-does-not-have-a-valid-header/#post-8214901)
 * I can’t reproduce this problem. How do you have installed the plugin? Have you
   tried de- and re-installing? Maybe a corrupted download?
 * All the best,
    Torsten
 *  [themarihun](https://wordpress.org/support/users/themarihun/)
 * (@themarihun)
 * [9 years, 8 months ago](https://wordpress.org/support/topic/wordpress-error-plugin-does-not-have-a-valid-header/#post-8252117)
 * I get the same error. Have tried uninstalling and reinstalling.
 * This is the url that shows with the error message, if that helps:
 * [http://www.devsite.dev/wp-admin/plugins.php?_wpnonce=2bb537a2b6&action=activate&plugin=cachify/trunk/cachify.php](http://www.devsite.dev/wp-admin/plugins.php?_wpnonce=2bb537a2b6&action=activate&plugin=cachify/trunk/cachify.php)
 * I’m working on localhost in Windows 10, if that makes a difference?
 * Thanks!
 *  Plugin Support [Torsten Landsiedel](https://wordpress.org/support/users/zodiac1978/)
 * (@zodiac1978)
 * [9 years, 7 months ago](https://wordpress.org/support/topic/wordpress-error-plugin-does-not-have-a-valid-header/#post-8373019)
 * Can you give some more informations about your environment? PHP version, server
   config, etc. Thanks!
 * All the best,
    Torsten
 *  Plugin Support [Torsten Landsiedel](https://wordpress.org/support/users/zodiac1978/)
 * (@zodiac1978)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/wordpress-error-plugin-does-not-have-a-valid-header/#post-8470988)
 * [https://github.com/pluginkollektiv/cachify/issues/50](https://github.com/pluginkollektiv/cachify/issues/50)
 *  [Johannes Jülg](https://wordpress.org/support/users/timse201/)
 * (@timse201)
 * [9 years, 4 months ago](https://wordpress.org/support/topic/wordpress-error-plugin-does-not-have-a-valid-header/#post-8693863)
 * the error is fixed now if you redownload the plugin or just delete the folder
   trunk in plugin folder

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘WordPress Error – plugin does not have a valid header.’ is closed to 
new replies.

 * ![](https://ps.w.org/cachify/assets/icon-256x256.png?rev=2505413)
 * [Cachify](https://wordpress.org/plugins/cachify/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/cachify/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/cachify/)
 * [Active Topics](https://wordpress.org/support/plugin/cachify/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/cachify/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/cachify/reviews/)

 * 5 replies
 * 4 participants
 * Last reply from: [Johannes Jülg](https://wordpress.org/support/users/timse201/)
 * Last activity: [9 years, 4 months ago](https://wordpress.org/support/topic/wordpress-error-plugin-does-not-have-a-valid-header/#post-8693863)
 * Status: not resolved