Support » Fixing WordPress » thumbnails – cannot modify heading error

  • Resolved oldbag66

    (@oldbag66)


    Hi, just followed the post thumbnail images tutorial here, it all works – except though when i add the thumbnail in admin it goes to a page with this error:

    Warning: Cannot modify header information – headers already sent by (output started at /var/www/vhosts/bradwaters.com/httpdocs/wp-content/themes/bradzz/functions.php:6) in /var/www/vhosts/bradwaters.com/httpdocs/wp-includes/pluggable.php on line 868

    any ideas ?

Viewing 9 replies - 1 through 9 (of 9 total)
  • oldbag66

    (@oldbag66)

    p.s. it does actually post the thumbnail properly so it does work..BUT i dont want that error!

    do you have any blank space at the top of your functions.php file?

    the very first line should be <?php right at the top

    if that’s not the issue, throw up your functions.php in a pastebin

    and also maybe a link to your site, in case viewing your source can help us

    oldbag66

    (@oldbag66)

    just made sure no gaps, its in pastebin, i dont know that much about the functions file, hopefully you can help!

    http://wordpress.pastebin.com/KJXaAt9i

    oldbag66

    (@oldbag66)

    nouveller

    (@nouveller)

    You might want to look for white space issues in /wp-includes/pluggable.php

    It’s a common error: http://lmgtfy.com/?q=wordpress+pluggable+error

    oldbag66

    (@oldbag66)

    pluggable didnt have a closing php tag at the very end, going to try that ?>

    oldbag66

    (@oldbag66)

    it worked! – thanks all

    EDIT-nevermind my post here, you got it!

    <?php
    if ( function_exists( 'add_theme_support' ) ) { // Added in 2.9
    	add_theme_support( 'post-thumbnails' );
    	set_post_thumbnail_size( 70, 70, true ); // Normal post thumbnails
    }
    ?>

    here’s how I do it, which works…. the if function stuff isn’t necessary….just keeps my theme safe for older WP versions if I release it….. If it’s not an issue with pluggable.php, see if maybe this code works any better

    oldbag66

    (@oldbag66)

    ah yes that tidys that up will do, thanks for your speedy help : )

Viewing 9 replies - 1 through 9 (of 9 total)
  • The topic ‘thumbnails – cannot modify heading error’ is closed to new replies.