Title: “Plugin does not have a valid header” error
Last modified: March 20, 2018

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# “Plugin does not have a valid header” error

 *  [haleysplash](https://wordpress.org/support/users/haleysplash/)
 * (@haleysplash)
 * [8 years, 2 months ago](https://wordpress.org/support/topic/plugin-does-not-have-a-valid-header-error-2/)
 * Hi, I am trying to upload the Cryout Serious Theme Settings plugin to my site.
   I have Nirvana activated as my theme. I am using WordPress 4.9.4, Nirvana 1.4.4
   and the plugin’s latest version, 0.5.9. I can upload the plugin successfully,
   but I receive the error, “This plugin does not have a valid header,” after I 
   click Activate.
    I have followed the instructions on the minimal step-by-step
   tutorial for debugging. I have no other plugins on my site. I have tried to upload
   the plugin via ftp, and install the plugin from wp-admin. I have tried to check
   the files to make sure there isn’t a duplicated folder, or mistakes in the beginning
   of the files. I am still seeing the error. What else can I try? Also, I see that
   the recommended version of the plugin on the Appearance> Nirvana Plugins page
   is the 0.5.1 version, not the current version of the plugin, 0.5.9. I also have
   tried to install that version, without success. Thank you for your time. The 
   Nirvana theme is wonderful!!
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fplugin-does-not-have-a-valid-header-error-2%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

The topic ‘“Plugin does not have a valid header” error’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/cryout-theme-settings.svg)
 * [Cryout Serious Theme Settings](https://wordpress.org/plugins/cryout-theme-settings/)
 * [Support Threads](https://wordpress.org/support/plugin/cryout-theme-settings/)
 * [Active Topics](https://wordpress.org/support/plugin/cryout-theme-settings/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/cryout-theme-settings/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/cryout-theme-settings/reviews/)

## Tags

 * [plugin error](https://wordpress.org/support/topic-tag/plugin-error/)
 * [valid header](https://wordpress.org/support/topic-tag/valid-header/)

 * 0 replies
 * 1 participant
 * Last reply from: [haleysplash](https://wordpress.org/support/users/haleysplash/)
 * Last activity: [8 years, 2 months ago](https://wordpress.org/support/topic/plugin-does-not-have-a-valid-header-error-2/)
 * Status: not resolved