Title: [Plugin: WP Post Thumbnail] The plugin does not have a valid header
Last modified: August 19, 2016

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# [Plugin: WP Post Thumbnail] The plugin does not have a valid header

 *  Resolved [torb](https://wordpress.org/support/users/torb/)
 * (@torb)
 * [16 years, 10 months ago](https://wordpress.org/support/topic/plugin-wp-post-thumbnail-the-plugin-does-not-have-a-valid-header/)
 * Using WP 2.8.1 and wp_post_thumbnail_0_2_beta_2
 * When trying to activate the plugin, I get this error: The plugin does not have
   a valid header.
 * I have set the permissions of wp-content to 777, and made a cache folder, also
   with permissions set to 777.
 * Solved: Not a good idea to use the upload function in WP, as the plugin is found
   in a sub folder of the installed folder.

The topic ‘[Plugin: WP Post Thumbnail] The plugin does not have a valid header’ 
is closed to new replies.

 * 0 replies
 * 1 participant
 * Last reply from: [torb](https://wordpress.org/support/users/torb/)
 * Last activity: [16 years, 10 months ago](https://wordpress.org/support/topic/plugin-wp-post-thumbnail-the-plugin-does-not-have-a-valid-header/)
 * Status: resolved

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