Title: Plugin Activation: “Plugin does not have valid header”
Last modified: August 19, 2016

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# Plugin Activation: “Plugin does not have valid header”

 *  [novaodyssey](https://wordpress.org/support/users/novaodyssey/)
 * (@novaodyssey)
 * [16 years, 5 months ago](https://wordpress.org/support/topic/plugin-activation-plugin-does-not-have-valid-header/)
 * Ever since I upgraded to wordpress 2.8.6 I have not been able to successfully
   activate plugins. I am able to upload them, but when I activate them, I get a
   white screen with the message: plugin does not have a valid header.
    Any thoughts?
   my site has the theme “sun city version 2.5”

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [georgemck](https://wordpress.org/support/users/georgemck/)
 * (@georgemck)
 * [16 years, 5 months ago](https://wordpress.org/support/topic/plugin-activation-plugin-does-not-have-valid-header/#post-1290947)
 * ditto.
 * “plugin does not have a valid header”
 * Looking into it now.
 *  [pcwriter](https://wordpress.org/support/users/pcwriter/)
 * (@pcwriter)
 * [16 years, 5 months ago](https://wordpress.org/support/topic/plugin-activation-plugin-does-not-have-valid-header/#post-1290959)
 * Any news on this problem? I’m having the same dilemma with bp-events.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Plugin Activation: “Plugin does not have valid header”’ is closed to 
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## Tags

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

 * 2 replies
 * 3 participants
 * Last reply from: [pcwriter](https://wordpress.org/support/users/pcwriter/)
 * Last activity: [16 years, 5 months ago](https://wordpress.org/support/topic/plugin-activation-plugin-does-not-have-valid-header/#post-1290959)
 * Status: not resolved

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