Title: Thematic theme causing errors
Last modified: August 19, 2016

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# Thematic theme causing errors

 *  [cgrray](https://wordpress.org/support/users/cgrray/)
 * (@cgrray)
 * [15 years, 8 months ago](https://wordpress.org/support/topic/thematic-theme-causing-errors/)
 * I installed wordpress with the twentyten theme and it works fine. I’m using xampp.
   I’m trying to use the Thematic theme but when I activate it I get these messages:
   
   Notice: register_sidebar_widget is deprecated since version 2.8! Use wp_register_sidebar_widget()
   instead. in D:\xampp\htdocs\wordpress\wp-includes\functions.php on line 3237
 * Notice: unregister_widget_control is deprecated since version 2.8! Use wp_unregister_widget_control()
   instead. in D:\xampp\htdocs\wordpress\wp-includes\functions.php on line 3237
 * Notice: register_sidebar_widget is deprecated since version 2.8! Use wp_register_sidebar_widget()
   instead. in D:\xampp\htdocs\wordpress\wp-includes\functions.php on line 3237
 * Notice: unregister_widget_control is deprecated since version 2.8! Use wp_unregister_widget_control()
   instead. in D:\xampp\htdocs\wordpress\wp-includes\functions.php on line 3237
 * Notice: register_sidebar_widget is deprecated since version 2.8! Use wp_register_sidebar_widget()
   instead. in D:\xampp\htdocs\wordpress\wp-includes\functions.php on line 3237
 * Notice: register_widget_control is deprecated since version 2.8! Use wp_register_widget_control()
   instead. in D:\xampp\htdocs\wordpress\wp-includes\functions.php on line 3237
 * Notice: Undefined index: page in D:\xampp\htdocs\wordpress\wp-content\themes\
   thematic\library\extensions\theme-options.php on line 39

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

 *  [davewgill](https://wordpress.org/support/users/davewgill/)
 * (@davewgill)
 * [15 years, 8 months ago](https://wordpress.org/support/topic/thematic-theme-causing-errors/#post-1689957)
 * I could be wrong but isn’t it telling you to use wp_register_sidebar_widget in
   functions.php instead of register_sidebar_widget.
 *  Thread Starter [cgrray](https://wordpress.org/support/users/cgrray/)
 * (@cgrray)
 * [15 years, 8 months ago](https://wordpress.org/support/topic/thematic-theme-causing-errors/#post-1689981)
 * That’s what it says but since I have the latest versions I thought they would
   work. I’m not sure I should change the wordpress code becuase of what could happen
   in a future update.

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

The topic ‘Thematic theme causing errors’ is closed to new replies.

 * 2 replies
 * 2 participants
 * Last reply from: [cgrray](https://wordpress.org/support/users/cgrray/)
 * Last activity: [15 years, 8 months ago](https://wordpress.org/support/topic/thematic-theme-causing-errors/#post-1689981)
 * Status: not resolved

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