Warning: Cannot modify header information – headers already sent by

  • gdscougall

    (@gdscougall)


    9 years ago

    Hi, I’m getting this message when trying to access wp-admin and certain pages in my website:

    “Warning: Cannot modify header information – headers already sent by (output started at /home/content/30/11322230/html/wp-includes/author-template.php:1) in /home/content/30/11322230/html/wp-includes/pluggable.php on line 1207”

    My website is https://www.sourcelogistics.com and specifically I can’t access the https://www.sourcelogistics.com/partners-login page as well as https://www.sourcelogistics.com/wp-admin/
    I’ve checked the file pluggable.php on line 1207 and everything seems fine, but still it’s not working. This is line 1207 of the pluggable.php file:

    header(“Location: $location”, true, $status);

    The strange part is that everything was working fine and we did not make any change to anything, it simply started presenting the problem.
    Please help!!
    Thanks a lot!
    Gerardo

Viewing 2 replies - 1 through 2 (of 2 total)
  • Moderator James Huff

    (@macmanx)

    You have unexpected whitespace (either a space or an entire line) on line 1 of the /wp-includes/author-template.php file, not pluggable.php. See this guide for more info.

    Alternatively, replacing the file with one from a fresh download may resolve the issue.

    Hi! I a getting the folowing messages when i try to update any page of my website:

    Warning: call_user_func_array() expects parameter 1 to be a valid callback, class ‘WP1S_Class’ does not have a method ‘wp1s_upgrade_save’ in /home/stelvipro/public_html/wp-includes/plugin.php on line 524

    Warning: Cannot modify header information – headers already sent by (output started at /home/stelvipro/public_html/wp-includes/plugin.php:524) in /home/stelvipro/public_html/wp-admin/post.php on line 197

    Warning: Cannot modify header information – headers already sent by (output started at /home/stelvipro/public_html/wp-includes/plugin.php:524) in /home/stelvipro/public_html/wp-includes/pluggable.php on line 1174

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