Title: Required PHP XSL Module Not Installed
Last modified: August 22, 2016

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# Required PHP XSL Module Not Installed

 *  [Edmond.M](https://wordpress.org/support/users/edmondm/)
 * (@edmondm)
 * [11 years, 5 months ago](https://wordpress.org/support/topic/required-php-xsl-module-not-installed/)
 * Hello,
 * I’ve been experiencing some issues with the recent updated version of the plugin.
   In the settings page of the plugin, I see something weird. I can’t check the 
   box reading “Include sitemap in HTML format” and strangely enough in the brackets
   I also see this message: “The Required PHP XSL Module is not installed”. I’m 
   using this same plugin on many other websites of mine and even though I’ve updated
   the plugin to the latest version there too, I don’t see this issue there. Still
   that box is checked and the message in the brackets can’t be seen.
 * I contacted my hosting provider and this is what they told me: “I did look it
   up a bit, and it seems to be related to one of our disallowed plugins, [http://wpengine.com/support/disallowed-plugins/](http://wpengine.com/support/disallowed-plugins/),
   W3 Total Cache. [https://wordpress.org/support/topic/sitemap_indexxml-page-not-found-error-404-405](https://wordpress.org/support/topic/sitemap_indexxml-page-not-found-error-404-405)–
   this article explains the issues with it there. This may be related to our caching.
 * Can you follow-up with the plugin developers to see if there is something similar
   that needs to be set on our platform, as I am not certain if this is something
   that needs to be addressed or not, I can’t say if it isn’t a problem or not.”
 * To inform you, I don’t use W3 Total Cache, as my hosting provider doesn’t allow
   using this plugin at all. Could you please tell me how to fix that problem?
 * Regards
    Edmond
 * [https://wordpress.org/plugins/google-sitemap-generator/](https://wordpress.org/plugins/google-sitemap-generator/)

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [ella2375](https://wordpress.org/support/users/ella2375/)
 * (@ella2375)
 * [11 years, 1 month ago](https://wordpress.org/support/topic/required-php-xsl-module-not-installed/#post-5533537)
 * Hello Edmond.M,
    I am having the same problem as you, and I don’t know how I 
   can fix it. Did you fix the problem? Can you help me? Thank you Regards, Mihaela
 *  Thread Starter [Edmond.M](https://wordpress.org/support/users/edmondm/)
 * (@edmondm)
 * [11 years, 1 month ago](https://wordpress.org/support/topic/required-php-xsl-module-not-installed/#post-5533539)
 * Hi Mihaela,
 * No, I’ve not fixed it and haven’t done anything. I can see the same problem here.
 *  [baddan](https://wordpress.org/support/users/baddan/)
 * (@baddan)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/required-php-xsl-module-not-installed/#post-5533550)
 * install on server php5 extension php5-xsl
 * for unix system:
    apt-get install php5-xsl

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Required PHP XSL Module Not Installed’ is closed to new replies.

 * ![](https://ps.w.org/google-sitemap-generator/assets/icon-256x256.png?rev=2713572)
 * [XML Sitemap Generator for Google](https://wordpress.org/plugins/google-sitemap-generator/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/google-sitemap-generator/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/google-sitemap-generator/)
 * [Active Topics](https://wordpress.org/support/plugin/google-sitemap-generator/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/google-sitemap-generator/unresolved/)
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## Tags

 * [google sitemap](https://wordpress.org/support/topic-tag/google-sitemap/)

 * 3 replies
 * 3 participants
 * Last reply from: [baddan](https://wordpress.org/support/users/baddan/)
 * Last activity: [10 years, 8 months ago](https://wordpress.org/support/topic/required-php-xsl-module-not-installed/#post-5533550)
 * Status: not resolved