Title: Cannot modify header information- Warning Message
Last modified: August 19, 2016

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# Cannot modify header information- Warning Message

 *  [js1234](https://wordpress.org/support/users/js1234/)
 * (@js1234)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/cannot-modify-header-information-warning-message/)
 * I cannot access the wp-admin area for below url as per below warning.
    If you
   go to “[http://www.top-yeast-infection-solutions.com/wp-admin/&#8221](http://www.top-yeast-infection-solutions.com/wp-admin/&#8221);
   you should see below warning. I’ve never seen this before.
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home2/topacidr/public_html/topyeastinfectionsolutions/wp-content/plugins/
   all-in-one-seo-pack/aioseop.class.php:4466) in /home2/topacidr/public_html/topyeastinfectionsolutions/
   wp-includes/pluggable.php on line 868
 * Maybe I should uninstall blog and start over as there is no content on blog yet.
   
   Can anyone advise on this? Thanks.

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [Shane G.](https://wordpress.org/support/users/shane-g-1/)
 * (@shane-g-1)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/cannot-modify-header-information-warning-message/#post-1496995)
 * 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.
 * You 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.
 *  [Samuel B](https://wordpress.org/support/users/samboll/)
 * (@samboll)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/cannot-modify-header-information-warning-message/#post-1497068)
 * if shane’s idea does not work
    rename the `/all-in-one-seo-pack` folder this 
   will deactivate it and let you log in to test
 *  Thread Starter [js1234](https://wordpress.org/support/users/js1234/)
 * (@js1234)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/cannot-modify-header-information-warning-message/#post-1497129)
 * Thanks, I think I’ll rename folder and see what happens.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Cannot modify header information- Warning Message’ is closed to new replies.

## Tags

 * [header](https://wordpress.org/support/topic-tag/header/)
 * [warning message](https://wordpress.org/support/topic-tag/warning-message/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 3 replies
 * 3 participants
 * Last reply from: [js1234](https://wordpress.org/support/users/js1234/)
 * Last activity: [16 years, 1 month ago](https://wordpress.org/support/topic/cannot-modify-header-information-warning-message/#post-1497129)
 * Status: not resolved

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