Title: Uncaught Error: Call to undefined function is_plugin_active()
Last modified: May 31, 2017

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# Uncaught Error: Call to undefined function is_plugin_active()

 *  Resolved [johndkent](https://wordpress.org/support/users/johndkent/)
 * (@johndkent)
 * [9 years, 4 months ago](https://wordpress.org/support/topic/uncaught-error-call-to-undefined-function-is_plugin_active/)
 * After completing an upgrade to Version 3.6.15 today to, a client called me to
   report the following error:
 * Uncaught Error: Call to undefined function is_plugin_active()
 * February 2, 2017 10:41 am Uncaught Error: Call to undefined function is_plugin_active()/
   home/xxxxxxx/public_html/wp-content/plugins/memphis-documents-library/includes/
   mdocs-settings.php Line 167
 * Thank you

Viewing 1 replies (of 1 total)

 *  Plugin Author [bhaldie](https://wordpress.org/support/users/bhaldie/)
 * (@bhaldie)
 * [9 years, 4 months ago](https://wordpress.org/support/topic/uncaught-error-call-to-undefined-function-is_plugin_active/#post-8731356)
 * Yes I see that, will have a fix up within the next few minutes.
 * Thanks for the report.

Viewing 1 replies (of 1 total)

The topic ‘Uncaught Error: Call to undefined function is_plugin_active()’ is closed
to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/memphis-documents-library_91918f.
   svg)
 * [Memphis Documents Library](https://wordpress.org/plugins/memphis-documents-library/)
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 * 2 replies
 * 2 participants
 * Last reply from: [ashleytallyn](https://wordpress.org/support/users/ashleytallyn/)
 * Last activity: [9 years ago](https://wordpress.org/support/topic/uncaught-error-call-to-undefined-function-is_plugin_active/#post-9183576)
 * Status: resolved