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Coraline
[resolved] Warning: Cannot Modify Header Information (6 posts)

  1. lauriemaefly
    Member
    Posted 1 year ago #

    Updated Coraline theme recently and just updated WordPress version.

    Can't login to my site via WordPress anymore. login page: http://nowwrite.net/wp-login.php

    These warnings appear at the top of the page:

    Warning: Cannot modify header information - headers already sent by (output started at /home/content/76/6774376/html/wp-content/themes/coraline/functions.php:1) in /home/content/76/6774376/html/wp-login.php on line 368

    Warning: Cannot modify header information - headers already sent by (output started at /home/content/76/6774376/html/wp-content/themes/coraline/functions.php:1) in /home/content/76/6774376/html/wp-login.php on line 380

    When I attempt to login in these lines are added to the top of the page:

    Warning: Cannot modify header information - headers already sent by (output started at /home/content/76/6774376/html/wp-content/themes/coraline/functions.php:1) in /home/content/76/6774376/html/wp-includes/pluggable.php on line 680

    Warning: Cannot modify header information - headers already sent by (output started at /home/content/76/6774376/html/wp-content/themes/coraline/functions.php:1) in /home/content/76/6774376/html/wp-includes/pluggable.php on line 681

    Warning: Cannot modify header information - headers already sent by (output started at /home/content/76/6774376/html/wp-content/themes/coraline/functions.php:1) in /home/content/76/6774376/html/wp-includes/pluggable.php on line 682

    Warning: Cannot modify header information - headers already sent by (output started at /home/content/76/6774376/html/wp-content/themes/coraline/functions.php:1) in /home/content/76/6774376/html/wp-includes/pluggable.php on line 876

  2. Give this a read regarding the headers already sent error message.

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

    It's usually your wp-config.php file that's the culprit (unless you edited the theme files).

  3. technogizmo
    Member
    Posted 1 year ago #

    I had a whole set of problems, and the FAQ above helped me solve a lot of them, plus some other threads gave good advice to completely delete the wp-admin folder and the wp-includes folder (after backing EVERYTHING up first, of course). Reinstall both from a clean, fresh download of WordPress (whatever version you just upgraded to).

    Those solutions solved all my problems but one. I got the same errors referencing the pluggable.php file.

    If you have access to your php.ini file, BACK IT UP, then simply change the output buffering to "on". Here is the default:

    output_buffering = off

    Here is what you change it to:

    output_buffering = on

    If you don't have access to your php.ini file, call your hosting company. They may have it under a different name, or have a different way you can set that.

    One last note, if you download your php.ini file to edit it on your own computer, use a plain text editor (like Notepad) that can save it in UTF-8 format. This is very important.

  4. frazersan
    Member
    Posted 1 year ago #

    i face a same problem @ http://www.kishorgonj.com where i had use sideber login plugins,
    after facing the problem i rename the sideber login plugin using FTP. Then Try to login -
    (my domain)/wp-admin/ i found my problem has solved.

  5. martini1
    Member
    Posted 10 months ago #

    Hi,

    I can not even get to my dashboard to where try to see the problems. I go to login and then am taken to a blank page with all these warnings:

    Warning: Cannot modify header information - headers already sent by (output started at /home2/martiene/public_html/wp-content/themes/bizstudio-lite/SketchBoard/functions/sketch-enqueue.php:1) in /home2/martiene/public_html/wp-login.php on line 384

    Warning: Cannot modify header information - headers already sent by (output started at /home2/martiene/public_html/wp-content/themes/bizstudio-lite/SketchBoard/functions/sketch-enqueue.php:1) in /home2/martiene/public_html/wp-login.php on line 396

    Warning: Cannot modify header information - headers already sent by (output started at /home2/martiene/public_html/wp-content/themes/bizstudio-lite/SketchBoard/functions/sketch-enqueue.php:1) in /home2/martiene/public_html/wp-includes/pluggable.php on line 678

    Warning: Cannot modify header information - headers already sent by (output started at /home2/martiene/public_html/wp-content/themes/bizstudio-lite/SketchBoard/functions/sketch-enqueue.php:1) in /home2/martiene/public_html/wp-includes/pluggable.php on line 679

    Warning: Cannot modify header information - headers already sent by (output started at /home2/martiene/public_html/wp-content/themes/bizstudio-lite/SketchBoard/functions/sketch-enqueue.php:1) in /home2/martiene/public_html/wp-includes/pluggable.php on line 680

    Warning: Cannot modify header information - headers already sent by (output started at /home2/martiene/public_html/wp-content/themes/bizstudio-lite/SketchBoard/functions/sketch-enqueue.php:1) in /home2/martiene/public_html/wp-includes/pluggable.php on line 875

    I am new to WP and have no idea what to do from here.. I have tried uninstalling and reinstalling WP and still have the same issue... I would love some help please

    M

  6. paulwpxp
    Font hero
    Posted 10 months ago #

    @martini1 this has nothing to do with Coraline theme

    Try delete this folder /bizstudio-lite, it looks like you have SketchBoard theme inside bizstudio-lite theme folder.

    Remove it and see if the problem goes away. If not, create a topic here
    http://wordpress.org/support/forum/how-to-and-troubleshooting

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