Title: Widget logic error message- what does it mean?
Last modified: August 20, 2016

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# Widget logic error message- what does it mean?

 *  [debbarrett](https://wordpress.org/support/users/debbarrett/)
 * (@debbarrett)
 * [14 years, 6 months ago](https://wordpress.org/support/topic/widget-logic-error-message-what-does-it-mean/)
 * I am receiving this error message when using widget logic for widgets in WP e
   commerce plug in ( Shopping cart and Product categories and html widget. Re installed
   and still having the issue. I am using Thesis framework 1.4.2 and WP 3.1
    Fatal
   error: `Call to undefined function is_() in /home/content/d/e/b/deb10/html/wp-
   content/plugins/widget-logic/widget_logic.php(161) : eval()'d code on line 1`
   Thanks in advance. Deb Barrett

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [alanft](https://wordpress.org/support/users/alanft/)
 * (@alanft)
 * [14 years, 6 months ago](https://wordpress.org/support/topic/widget-logic-error-message-what-does-it-mean/#post-2394490)
 * you have some faulty widget logic in one of your widgets
 *  Thread Starter [debbarrett](https://wordpress.org/support/users/debbarrett/)
 * (@debbarrett)
 * [14 years, 6 months ago](https://wordpress.org/support/topic/widget-logic-error-message-what-does-it-mean/#post-2394513)
 * Thanks. I am using only one conditional tag- for product category widget in WPEC.
   Tag is `is_page('309')` and I confirmed with documentation post on developer’s
   site. It is now working but is actually triplicating the category links in WPEC.
   So I am assuming there is some sort of interference. Checked out all the forums
   and doesn’t seem to be any posts about this .

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Widget logic error message- what does it mean?’ is closed to new replies.

 * 2 replies
 * 2 participants
 * Last reply from: [debbarrett](https://wordpress.org/support/users/debbarrett/)
 * Last activity: [14 years, 6 months ago](https://wordpress.org/support/topic/widget-logic-error-message-what-does-it-mean/#post-2394513)
 * Status: not resolved

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