Title: plugin activation warning
Last modified: August 19, 2016

---

# plugin activation warning

 *  [mbeusen](https://wordpress.org/support/users/mbeusen/)
 * (@mbeusen)
 * [15 years, 1 month ago](https://wordpress.org/support/topic/plugin-activation-warning/)
 * Tried activating the plug-in but it all of a sudden came up with “Warning: array_merge()[
   function.array-merge]: Argument #2 is not an array in /home/mbeusen/public_html/
   wp-includes/widgets.php on line 777”
    Unable to access wordpress or undo problem….

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

 *  [Samuel B](https://wordpress.org/support/users/samboll/)
 * (@samboll)
 * [15 years, 1 month ago](https://wordpress.org/support/topic/plugin-activation-warning/#post-2060224)
 * ftp or use host’s file manager to rename the plugin
    this will deactivate it 
   and let you log in to test
 *  [mcfunky](https://wordpress.org/support/users/mcfunky/)
 * (@mcfunky)
 * [15 years, 1 month ago](https://wordpress.org/support/topic/plugin-activation-warning/#post-2060422)
 * How do you solve that problem after you’ve re-entered? I had the same thing happen
   over the weekend and I don’t know how to resolve it — exact same message, only
   with my website/file.
 *  Thread Starter [mbeusen](https://wordpress.org/support/users/mbeusen/)
 * (@mbeusen)
 * [15 years, 1 month ago](https://wordpress.org/support/topic/plugin-activation-warning/#post-2060434)
 * I contacted my webhost and they suggested I deactivate/uninstall the plugin. 
   This seems to have resolved the issue.
 *  [mcfunky](https://wordpress.org/support/users/mcfunky/)
 * (@mcfunky)
 * [15 years, 1 month ago](https://wordpress.org/support/topic/plugin-activation-warning/#post-2060435)
 * Thanks, I did that already – the problem is the plug-in was working before the
   update of my theme. I am hoping to fix it somehow. Glad yours is fixed though.
 *  [johnosmond](https://wordpress.org/support/users/johnosmond/)
 * (@johnosmond)
 * [15 years, 1 month ago](https://wordpress.org/support/topic/plugin-activation-warning/#post-2060558)
 * You need to complete your constructor function with an id_base and a name.
 * So if your running php 5.3 (or <) then:
    function __construct() { parent::__construct(
   $id_base = ‘xyz_’, $name = ‘My Simple Widget’); }
 * or if you are not using php 5.3 or < then use the name of your class.

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

The topic ‘plugin activation warning’ is closed to new replies.

 * 5 replies
 * 4 participants
 * Last reply from: [johnosmond](https://wordpress.org/support/users/johnosmond/)
 * Last activity: [15 years, 1 month ago](https://wordpress.org/support/topic/plugin-activation-warning/#post-2060558)
 * Status: not resolved

## Topics

### Topics with no replies

### Non-support topics

### Resolved topics

### Unresolved topics

### All topics