Title: Error message
Last modified: January 30, 2017

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# Error message

 *  Resolved [andymiller](https://wordpress.org/support/users/andymiller/)
 * (@andymiller)
 * [9 years, 4 months ago](https://wordpress.org/support/topic/error-message-579/)
 * Hi
 * The plugin worked fine until I tried to increase the number of duplicates on 
   the Manage Duplicates page to more than 20. I got the message:
 * `PHP Warning: array_diff(): Argument #1 is not an array in /var/sites/i/{my site
   name was here}/public_html/wp-content/plugins/media-deduper/media-deduper.php
   on line 461`
 * I am running PHP 7.0.
 * Hopefully there’s an easy fix as the plug-in looks like it would be really useful.
 * Thanks for your work.
    -  This topic was modified 9 years, 4 months ago by [andymiller](https://wordpress.org/support/users/andymiller/).

Viewing 4 replies - 1 through 4 (of 4 total)

 *  [drywallbmb](https://wordpress.org/support/users/drywallbmb/)
 * (@drywallbmb)
 * [9 years, 4 months ago](https://wordpress.org/support/topic/error-message-579/#post-8716989)
 * Thanks for reporting this bug, we’ll take a look as soon as we can!
 *  Thread Starter [andymiller](https://wordpress.org/support/users/andymiller/)
 * (@andymiller)
 * [9 years, 3 months ago](https://wordpress.org/support/topic/error-message-579/#post-8819555)
 * Working nicely now. Thanks.
 *  [drywallbmb](https://wordpress.org/support/users/drywallbmb/)
 * (@drywallbmb)
 * [9 years, 3 months ago](https://wordpress.org/support/topic/error-message-579/#post-8826532)
 * Great! Glad the new release resolved the issue, sorry it took a while.
 *  Thread Starter [andymiller](https://wordpress.org/support/users/andymiller/)
 * (@andymiller)
 * [9 years, 3 months ago](https://wordpress.org/support/topic/error-message-579/#post-8826858)
 * Not a problem – I’m just glad you fixed it!
    -  This reply was modified 9 years, 3 months ago by [andymiller](https://wordpress.org/support/users/andymiller/).

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Error message’ is closed to new replies.

 * ![](https://ps.w.org/media-deduper/assets/icon-256x256.png?rev=1682001)
 * [Media Deduper](https://wordpress.org/plugins/media-deduper/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/media-deduper/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/media-deduper/)
 * [Active Topics](https://wordpress.org/support/plugin/media-deduper/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/media-deduper/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/media-deduper/reviews/)

 * 4 replies
 * 2 participants
 * Last reply from: [andymiller](https://wordpress.org/support/users/andymiller/)
 * Last activity: [9 years, 3 months ago](https://wordpress.org/support/topic/error-message-579/#post-8826858)
 * Status: resolved