Title: Error with Must-Use plugins
Last modified: June 5, 2018

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# Error with Must-Use plugins

 *  Resolved [manuelbrossard](https://wordpress.org/support/users/manuelbrossard/)
 * (@manuelbrossard)
 * [8 years ago](https://wordpress.org/support/topic/error-with-must-use-plugins/)
 * Hi!
    I am having an issue while trying to import to a distant website the export
   i did from my localhost version. I did replace the url.
 * I have done this process a lot of times and it never failed until now.
 * When trying to import my .wpress file on the distant website from the admin tab,
   I get the message “[doing whatever with ] the blogs” and it freezes.
 * I checked my error.log file, and i got the following error message :
    Jun 05 
   2018 15:12:38 {“type”:2,”message”:”Invalid argument supplied for foreach()”,”
   file”:”C:\\wamp64\\www\\freelance.com\\wp-content\\mu-plugins\\wpengine-common\\
   plugin.php”,”line”:1049} Jun 05 2018 15:12:40 {“type”:8,”message”:”Use of undefined
   constant PWP_NAME – assumed ‘PWP_NAME'”,”file”:”C:\\wamp64\\www\\freelance.com\\
   wp-content\\mu-plugins\\wpengine-common\\class.deployment.php”,”line”:17}
 * There is no way i could fix it.
    But do you think it could really be the reason
   why it is not working anymore?
 * What’s more, my localhost is on PHP 5.6.31 and the distant is 7.0, indeed. But
   it did worked before anyway, too.
 * I am not sure i am on the right path to find the solution.
 * Thank you.

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

 *  [lesleysm](https://wordpress.org/support/users/lesleysm/)
 * (@lesleysm)
 * [8 years ago](https://wordpress.org/support/topic/error-with-must-use-plugins/#post-10368220)
 * Hi
 * Did you have the opportunity to look at the information on our support site?
   
   [https://help.servmask.com/knowledgebase/migrate-wordpress-from-php-5-to-php-7/](https://help.servmask.com/knowledgebase/migrate-wordpress-from-php-5-to-php-7/)
 * Could you try and take a backup without any must use plugins in the Advanced 
   Features section?
 * Cheers
    Lesley
 *  Thread Starter [manuelbrossard](https://wordpress.org/support/users/manuelbrossard/)
 * (@manuelbrossard)
 * [8 years ago](https://wordpress.org/support/topic/error-with-must-use-plugins/#post-10370985)
 * Hi Lesley!
 * Unfortunately, i cannot deactivate the Must-Use plugins on my WordPress.
    I changed
   my PHP version on my localhost to match with the one on the distant server and
   I still have the migration process stuck at “Done preparing blogs.”.
 * I guess it comes indeed from the Must-Use plugins as suggested by your error.
   log
 * But i will try one last import with all the other plugins deactivated, just to
   be sure.
    I will tell you back.
 * The WP_DEBUG set to true reveals a few warning related to the Must-Use plugins
   anyway.
 * Thank you for your help.
    Manuel
 *  Thread Starter [manuelbrossard](https://wordpress.org/support/users/manuelbrossard/)
 * (@manuelbrossard)
 * [8 years ago](https://wordpress.org/support/topic/error-with-must-use-plugins/#post-10371053)
 * Lesley,
    the import plugin finally ended up displaying this error info : “Unable
   to import Unable to open file for reading.”
 * Does it tell you something?
    I verified, and my file is readable.
 *  Plugin Author [Yani](https://wordpress.org/support/users/yaniiliev/)
 * (@yaniiliev)
 * [8 years ago](https://wordpress.org/support/topic/error-with-must-use-plugins/#post-10373311)
 * [@manuelbrossard](https://wordpress.org/support/users/manuelbrossard/)
 * It sounds like the server does not have enough disk space. I recommend that you
   start over.
    Unlimited extension, [https://servmask.com/products/unlimited-extension](https://servmask.com/products/unlimited-extension),
   has the ability to exclude mu-plugins and you might find it useful in your case.

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

The topic ‘Error with Must-Use plugins’ is closed to new replies.

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## Tags

 * [Import](https://wordpress.org/support/topic-tag/import/)
 * [must-use](https://wordpress.org/support/topic-tag/must-use/)

 * 4 replies
 * 3 participants
 * Last reply from: [Yani](https://wordpress.org/support/users/yaniiliev/)
 * Last activity: [8 years ago](https://wordpress.org/support/topic/error-with-must-use-plugins/#post-10373311)
 * Status: resolved