Title: icedancer's Replies | WordPress.org

---

# icedancer

  [  ](https://wordpress.org/support/users/icedancer/)

 *   [Profile](https://wordpress.org/support/users/icedancer/)
 *   [Topics Started](https://wordpress.org/support/users/icedancer/topics/)
 *   [Replies Created](https://wordpress.org/support/users/icedancer/replies/)
 *   [Reviews Written](https://wordpress.org/support/users/icedancer/reviews/)
 *   [Topics Replied To](https://wordpress.org/support/users/icedancer/replied-to/)
 *   [Engagements](https://wordpress.org/support/users/icedancer/engagements/)
 *   [Favorites](https://wordpress.org/support/users/icedancer/favorites/)

 Search replies:

## Forum Replies Created

Viewing 1 replies (of 1 total)

 *   Forum: [Installing WordPress](https://wordpress.org/support/forum/installation/)
   
   In reply to: [Upgrade doesn’t work: unexpected T_ENDSWITCH](https://wordpress.org/support/topic/upgrade-doesnt-work-unexpected-t_endswitch/)
 *  [icedancer](https://wordpress.org/support/users/icedancer/)
 * (@icedancer)
 * [18 years, 9 months ago](https://wordpress.org/support/topic/upgrade-doesnt-work-unexpected-t_endswitch/#post-565271)
 * I have had the same problem. Worked through it as above, replacing the files.
   Then came up with a further file error – “Fatal error: Call to undefined function:
   add_filter() in website/wp-includes/default-filters.php on line 4.
 * I have tried deleting this file and uploading a fresh copy as ascii. However 
   the same error is repeated each time I perform this action.
 * Anyone got a solution.

Viewing 1 replies (of 1 total)