Title: Warnings when posting
Last modified: August 19, 2016

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# Warnings when posting

 *  [corepsych](https://wordpress.org/support/users/corepsych/)
 * (@corepsych)
 * [16 years, 6 months ago](https://wordpress.org/support/topic/warnings-when-posting/)
 * I keep getting the following warnings anytime I create or update a post:
 * Warning: call_user_func(extract_terms::update_taxonomy_count) [function.call-
   user-func]: First argument is expected to be a valid callback in /home1/corepsyc/
   public_html/wp-includes/taxonomy.php on line 1769
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home1/corepsyc/public_html/wp-includes/taxonomy.php:1769) in /home1/corepsyc/
   public_html/wp-includes/pluggable.php on line 865
 * What are these? How can I fix/stop them?

Viewing 4 replies - 1 through 4 (of 4 total)

 *  [Mark Ratledge](https://wordpress.org/support/users/songdogtech/)
 * (@songdogtech)
 * [16 years, 6 months ago](https://wordpress.org/support/topic/warnings-when-posting/#post-1272887)
 * Deactivate plugins and see if the warnings go away. Check if there are updates
   for any plugins you’re using, too.
 *  Thread Starter [corepsych](https://wordpress.org/support/users/corepsych/)
 * (@corepsych)
 * [16 years, 6 months ago](https://wordpress.org/support/topic/warnings-when-posting/#post-1273095)
 * Thanks Songdog,
    we just don’t have liftoff, and I do hope to get over and get
   Thesis 1.6 on board.
 * Do you have a special interest in SEO to make it all work?
 * Do I deactivate _all_ plug ins?
    chuck
 *  [Shane G.](https://wordpress.org/support/users/shane-g-1/)
 * (@shane-g-1)
 * [16 years, 6 months ago](https://wordpress.org/support/topic/warnings-when-posting/#post-1273101)
 * Hi,
 * It is usually due to spaces, new lines, or other garbage at opening/closing PHP
   file <?php tag or after a closing ?> tag in wp-config.php. It can be other file
   too so need to check error message as it may list file name where the error occurred.
 * One can either upload error file from the backup or edit erroneous file. To edit
   the file one need to check below mentioned points:
 * 1. Download the file mentioned in the error message.
    2. Open that file in a 
   plain text editor 3. Check that the very first characters are <?php 4. Check 
   that the very last characters are ?> 5. Place the cursor between the ? and > 
   6. Now press the DELETE key on your computer and keep that key pressed for at
   least 15 seconds. 7. Now type > and 8. Save without pressing any other key at
   all.
 * That’s it!
 * Thanks,
 * Shane G.
 *  [Mark Ratledge](https://wordpress.org/support/users/songdogtech/)
 * (@songdogtech)
 * [16 years, 6 months ago](https://wordpress.org/support/topic/warnings-when-posting/#post-1273102)
 * Deactivate all plugins and see what happens. If you can post again, then reactivate
   one at a time until you get the error again. That’s your bad plugin.
 * Switch to the wordpress default theme for a minute and see if you can post. If
   you, Thesis is giving you problems.
 * What do mean by me having an interest in SEO?

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Warnings when posting’ is closed to new replies.

## Tags

 * [-posting](https://wordpress.org/support/topic-tag/posting/)
 * [editing](https://wordpress.org/support/topic-tag/editing/)
 * [new-post](https://wordpress.org/support/topic-tag/new-post/)
 * [post](https://wordpress.org/support/topic-tag/post/)
 * [warning](https://wordpress.org/support/topic-tag/warning/)
 * [warnings](https://wordpress.org/support/topic-tag/warnings/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 4 replies
 * 3 participants
 * Last reply from: [Mark Ratledge](https://wordpress.org/support/users/songdogtech/)
 * Last activity: [16 years, 6 months ago](https://wordpress.org/support/topic/warnings-when-posting/#post-1273102)
 * Status: not resolved

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