Title: ERROR: Class 'XMLWriter' not found
Last modified: August 21, 2016

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# ERROR: Class 'XMLWriter' not found

 *  [mastermaq](https://wordpress.org/support/users/mastermaq/)
 * (@mastermaq)
 * [12 years, 4 months ago](https://wordpress.org/support/topic/error-class-xmlwriter-not-found/)
 * After upgrading to 3.1.1 I am now getting this error whenever a backup job executes:
 * PHP Fatal error: Class ‘XMLWriter’ not found in /blog/wp-content/plugins/backwpup/
   vendor/Guzzle/Service/Command/LocationVisitor/Request/XmlVisitor.php on line 
   201
 * Any idea how I can resolve this? Thanks!
 * [http://wordpress.org/plugins/backwpup/](http://wordpress.org/plugins/backwpup/)

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

 *  Plugin Contributor [Daniel Hüsken](https://wordpress.org/support/users/danielhuesken/)
 * (@danielhuesken)
 * [12 years, 4 months ago](https://wordpress.org/support/topic/error-class-xmlwriter-not-found/#post-4560224)
 * Can you test the beta from [https://github.com/inpsyde/backwpup](https://github.com/inpsyde/backwpup)
   the is the vendor libery upgraded. The release is planned for next week.
 *  Thread Starter [mastermaq](https://wordpress.org/support/users/mastermaq/)
 * (@mastermaq)
 * [12 years, 4 months ago](https://wordpress.org/support/topic/error-class-xmlwriter-not-found/#post-4560286)
 * Same error, unfortunately.
 *  Plugin Contributor [Daniel Hüsken](https://wordpress.org/support/users/danielhuesken/)
 * (@danielhuesken)
 * [12 years, 4 months ago](https://wordpress.org/support/topic/error-class-xmlwriter-not-found/#post-4560297)
 * Hello there is a update for Guzzle again that should be resolve this. I will 
   add it to next release.
 *  [jocorless](https://wordpress.org/support/users/jocorless/)
 * (@jocorless)
 * [11 years, 11 months ago](https://wordpress.org/support/topic/error-class-xmlwriter-not-found/#post-4560413)
 * I’m getting that same error on a new installation – should it have been fixed?
 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [11 years, 11 months ago](https://wordpress.org/support/topic/error-class-xmlwriter-not-found/#post-4560414)
 * If you require assistance then, as per the [Forum Welcome](http://codex.wordpress.org/Forum_Welcome#Where_To_Post),
   please post your own topic instead of tagging onto someone else’s topic.
 * I am now closing this 4 month old topic as it references an older version of 
   WordPress.

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

The topic ‘ERROR: Class 'XMLWriter' not found’ is closed to new replies.

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 * 5 replies
 * 4 participants
 * Last reply from: [esmi](https://wordpress.org/support/users/esmi/)
 * Last activity: [11 years, 11 months ago](https://wordpress.org/support/topic/error-class-xmlwriter-not-found/#post-4560414)
 * Status: not resolved