Title: undefined function add_theme_support
Last modified: August 20, 2016

---

# undefined function add_theme_support

 *  [ambuj](https://wordpress.org/support/users/ambuj/)
 * (@ambuj)
 * [14 years, 9 months ago](https://wordpress.org/support/topic/undefined-function-add_theme_support/)
 * I tried to upload a theme call AllTuts from Site5. It’s showing me below error
   when I’m trying to preview of activate it. Other themes are working fine.
 * Fatal error: Call to undefined function add_theme_support() in C:\wamp\www\…\
   wp-content\themes\alltuts\functions.php on line 41

The topic ‘undefined function add_theme_support’ is closed to new replies.

## Tags

 * [alltuts](https://wordpress.org/support/topic-tag/alltuts/)
 * [undefined function](https://wordpress.org/support/topic-tag/undefined-function/)

 * 0 replies
 * 1 participant
 * Last reply from: [ambuj](https://wordpress.org/support/users/ambuj/)
 * Last activity: [14 years, 9 months ago](https://wordpress.org/support/topic/undefined-function-add_theme_support/)
 * Status: not resolved

## Topics

### Topics with no replies

### Non-support topics

### Resolved topics

### Unresolved topics

### All topics
