Title: Cannot modify header info
Last modified: August 18, 2016

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# Cannot modify header info

 *  Resolved [pilcrow](https://wordpress.org/support/users/pilcrow/)
 * (@pilcrow)
 * [19 years, 7 months ago](https://wordpress.org/support/topic/cannot-modify-header-info-2/)
 * Hi,
 * I started getting the following error messages after uploading a new theme; up
   until then everything worked just fine. I looked in both files and deleted the
   blank lines (yes, I searched the forum and read the codex before posting here),
   and also in wp-config even though it wasn’t mentioned. The codex says this error
   is “usually” caused by blank lines. Is it ever caused by anything else? The theme
   is one I made myself, based on Kubrick of course.
 * Thank you so much for your help!
 * The error messages:
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/pilcrowb/public_html/bookworm/wp-content/themes/bookworm5/functions.
   php:795) in /home/pilcrowb/public_html/bookworm/wp-admin/inline-uploading.php
   on line 5
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/pilcrowb/public_html/bookworm/wp-content/themes/bookworm5/functions.
   php:795) in /home/pilcrowb/public_html/bookworm/wp-includes/pluggable-functions.
   php on line 272

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

 *  [viper007bond](https://wordpress.org/support/users/viper007bond/)
 * (@viper007bond)
 * [19 years, 7 months ago](https://wordpress.org/support/topic/cannot-modify-header-info-2/#post-458461)
 * `/wp-content/themes/bookworm5/functions.php` has a line break at the end of the
   file after `?>` (assuming the end of the file is on line number 795).
 *  Thread Starter [pilcrow](https://wordpress.org/support/users/pilcrow/)
 * (@pilcrow)
 * [19 years, 7 months ago](https://wordpress.org/support/topic/cannot-modify-header-info-2/#post-458491)
 * <gasp!> That was it! Thank you so much! I’d been looking at the inline-uploading
   and pluggable-functions files. Now I get it!

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

The topic ‘Cannot modify header info’ is closed to new replies.

## Tags

 * [Modify](https://wordpress.org/support/topic-tag/modify/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 2 replies
 * 2 participants
 * Last reply from: [pilcrow](https://wordpress.org/support/users/pilcrow/)
 * Last activity: [19 years, 7 months ago](https://wordpress.org/support/topic/cannot-modify-header-info-2/#post-458491)
 * Status: resolved

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