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I am trying to customise a plugin to add some functionality that is not part of the original.

To do this I have copied all the files into a new folder, and renamed all the function prefixes, changed the header of the main php file.

I have tried uploading the files straight to the server for activation but it was not picked up by WP so I zipped all the files to install them "properly" and it came up with the following output:

Unpacking the package…

Installing the plugin…

The package could not be installed. No valid plugins were found.

Plugin install failed.

http://www.mydomain.com/wp-admin/update.php?action=upload-plugin

Thinking that this may be a header problem I double checked my header but it all appeared to be correct, to my eyes at least.

/*
Plugin Name: MC Investment Custom
Plugin URI: http://www.spectra-info.com/wp/plugins (Original)
Description: Customised plugin based on the MC Investment Plugin.
Version: 1.0
Author: Edited by Joshua Ward Original by Spectrain
Author URI: http://www.spectra-info.com (Original)
*/

But alas, no success. The .zip file has the plugin file in it's 'root' directory so I am fairly confident that is not the problem.

Is there anything wrong with the plugin header that I can't see? I have tried it without the (Original) in the URI lines thinking that was what has mucked it but it appears not.

EDIT: Please stop replacing Customise with Customize. Everybody who types English who is not American, ie me, spell it the British (read: proper) way.

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  • Have you tried disabling all plugin's and then try to activate? Feb 7, 2012 at 13:05
  • Yeah. When I upload it manually it doesn't appear in the plugins list as a deactivated plugin. So it isn't registering as anything to activate
    – Joshua
    Feb 7, 2012 at 19:57

1 Answer 1

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Unsure of what I did but it seems to be working now. It may have something to do with the fact that I renamed the main php file to try and avoid a conflict. If I keep it the same file name it "registers".

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  • what main php are you referring to?
    – Blowsie
    Mar 20, 2013 at 8:15

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