Title: Error when activating the theme
Last modified: August 21, 2016

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# Error when activating the theme

 *  Resolved [jurri](https://wordpress.org/support/users/jurri/)
 * (@jurri)
 * [11 years, 11 months ago](https://wordpress.org/support/topic/error-when-activating-the-theme/)
 * Hi there,
 * I´ve installed the theme in WordPress and get the following message:
    Successfully
   installed the theme StrapVert 1.2.4.
 * However, every time I try to activate the theme (I´ve tried o different domains)
   it goes wrong… I get this PHP error message:
 * Fatal error: Call to undefined function wp_is_mobile() in /home/bestand/public_html/
   GG/wp-content/themes/strapvert/functions.php on line 246
 * How to solve this? Any help will be highly appreciated!
 * Jurri

Viewing 1 replies (of 1 total)

 *  Thread Starter [jurri](https://wordpress.org/support/users/jurri/)
 * (@jurri)
 * [11 years, 11 months ago](https://wordpress.org/support/topic/error-when-activating-the-theme/#post-5064903)
 * *SOLVED*
 * Turned out there was a problem with the PhP engine on my server.
 * Please close topic.

Viewing 1 replies (of 1 total)

The topic ‘Error when activating the theme’ is closed to new replies.

 * ![](https://i0.wp.com/themes.svn.wordpress.org/strapvert/1.2.4/screenshot.png)
 * StrapVert
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 * 1 reply
 * 1 participant
 * Last reply from: [jurri](https://wordpress.org/support/users/jurri/)
 * Last activity: [11 years, 11 months ago](https://wordpress.org/support/topic/error-when-activating-the-theme/#post-5064903)
 * Status: resolved