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1. HustleTurtle
   Member
   Posted 1 year ago #

   hello
   i did this

   http://wordpress.org/support/topic/how-do-i-put-thumbnails-on-the-index-page-posts

   and when i try to login to wp admin i get this error

   Warning: Cannot modify header information - headers already sent by (output started at /home/sites/public_html/mydomain.com/wp-content/themes/pixel/functions.php:124) in /home/sites/public_html/mydomain.com/wp-login.php on line 337

   Warning: Cannot modify header information - headers already sent by (output started at /home/sites/public_html/mydomain.com/wp-content/themes/pixel/functions.php:124) in /home/sites/public_html/mydomain.com/wp-login.php on line 349

   Warning: Cannot modify header information - headers already sent by (output started at /home/sites/public_html/mydomain.com/wp-content/themes/pixel/functions.php:124) in /home/sites/public_html/mydomain.com/wp-includes/pluggable.php on line 690

   Warning: Cannot modify header information - headers already sent by (output started at /home/sites/public_html/mydomain.com/wp-content/themes/pixel/functions.php:124) in /home/sites/public_html/mydomain.com/wp-includes/pluggable.php on line 691

   Warning: Cannot modify header information - headers already sent by (output started at /home/sites/public_html/mydomain.com/wp-content/themes/pixel/functions.php:124) in /home/sites/public_html/mydomain.com/wp-includes/pluggable.php on line 692

   Warning: Cannot modify header information - headers already sent by (output started at /home/sites/public_html/mydomain.com/wp-content/themes/pixel/functions.php:124) in /home/sites/public_html/mydomain.com/wp-includes/pluggable.php on line 890

2. Roy
   Member
   Posted 1 year ago #

   This is usually caused by spaces or linebreaks where they shouldn't be.

   http://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F

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