Title: Warning: Cannot modify header information
Last modified: August 18, 2016

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# Warning: Cannot modify header information

 *  [doren](https://wordpress.org/support/users/doren/)
 * (@doren)
 * [21 years, 5 months ago](https://wordpress.org/support/topic/warning-cannot-modify-header-information-4/)
 * This has been discussed in several threads but I have yet to find a solution.
   It’s excruciating and I’m close to giving up…
    Installation appears to be successful.
   Blog is created and populated with sample entry, etc… But all attempts to log
   in are thwarted. The Login screen displays the following error: Warning: Cannot
   modify header information – headers already sent by (output started at /home2/
   crshlndg/doren-www/wordpress/wp-includes/functions-formatting.php:833) in /home2/
   crshlndg/doren-www/wordpress/wp-login.php on line 562 Warning: Cannot modify 
   header information – headers already sent by (output started at /home2/crshlndg/
   doren-www/wordpress/wp-includes/functions-formatting.php:833) in /home2/crshlndg/
   doren-www/wordpress/wp-login.php on line 565 Warning: Cannot modify header information–
   headers already sent by (output started at /home2/crshlndg/doren-www/wordpress/
   wp-includes/functions-formatting.php:833) in /home2/crshlndg/doren-www/wordpress/
   wp-login.php on line 568 Warning: Cannot modify header information – headers 
   already sent by (output started at /home2/crshlndg/doren-www/wordpress/wp-includes/
   functions-formatting.php:833) in /home2/crshlndg/doren-www/wordpress/wp-login.
   php on line 571 Other threads have suggested purging the extra “whitespace” or
   line after the ?> in the config file and elsewhere. I’ve tried that, as well 
   as replacing filed due to possible upload problems. And every other suggestion
   in the Forum. I have WP running smoothly on my local machine (mac os x) but I
   can’t get this running on my host. I’m close to giving up. Any help appreciated.

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

 *  [Mark (podz)](https://wordpress.org/support/users/podz/)
 * (@podz)
 * [21 years, 5 months ago](https://wordpress.org/support/topic/warning-cannot-modify-header-information-4/#post-113535)
 * [http://faq.wordpress.net/view.php?p=7](http://faq.wordpress.net/view.php?p=7)
   
   Check the end of the file mentioned in the first error.
 *  Thread Starter [doren](https://wordpress.org/support/users/doren/)
 * (@doren)
 * [21 years, 5 months ago](https://wordpress.org/support/topic/warning-cannot-modify-header-information-4/#post-113544)
 * Yes, it seems my problem/solution was the same after all.
    A number of the “include”
   files had an extraneous carriage return. When I fixed the first offender and 
   refreshed the page, I saw the same error message but didn’t realize it was referring
   to a different include file. I just went through one at a time until I had crushed
   the offender. Then logged in. Thank you for the assistance! Much appreciated!

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

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

 * In: [Installing WordPress](https://wordpress.org/support/forum/installation/)
 * 2 replies
 * 2 participants
 * Last reply from: [doren](https://wordpress.org/support/users/doren/)
 * Last activity: [21 years, 5 months ago](https://wordpress.org/support/topic/warning-cannot-modify-header-information-4/#post-113544)
 * Status: not resolved

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