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1. ben@nabidana.com
   Member
   Posted 4 months ago #

   Error message when doing anything with plugins. Have read the forum as best I can.

   Warning: Cannot modify header information - headers already sent by (output started at /home/paveepoi/public_html/sitenua/wp-includes/general-template.php:2101) in /home/paveepoi/public_html/sitenua/wp-includes/pluggable.php on line 866

   line 866 on pluggable.php is:

   header("Location: $location", true, $status);

   immediately followed by a curly bracket and the rest of the PHP. There is no blank line at the beginning or end of the file, or before the closing

   >?

   general-template.php also appears to have nothing seriously wrong. No blank lines before the opening <php or the closing ?>

   I can't identify any obvious solution, but I am happy to hope there will be one. Have reinstalled the WordPress, have upgraded the theme.

2. esmi
   Theme Diva & Forum Moderator
   Posted 4 months ago #

   See Solving "headers already sent" warnings.

3. ben@nabidana.com
   Member
   Posted 4 months ago #

   Thanks for that esmi - I can now interpret the problem and see that the issue must lie in general-template.php , but I don't see it.

   I'm using crimson editor to get line numbers.

   There is no white space below the closing ?> and none before the opening <php

   On line 2101 of general-template.php there's the following:

   echo apply_filters( 'wp_admin_css', "<link rel='stylesheet' href='" . esc_url( wp_admin_css_uri( $file ) ) . "' type='text/css' />\n", $file );

4. esmi
   Theme Diva & Forum Moderator
   Posted 4 months ago #

   Have you tried:

   - deactivating all plugins to see if this resolves the problem. If this works, re-activate the plugins one by one until you find the problematic plugin(s).

   - switching to the Twenty Eleven theme to rule out any theme-specific problems.

   - resetting the plugins folder by FTP or PhpMyAdmin. Sometimes, an apparently inactive plugin can still cause problems.

   - re-uploading the wp-admin and wp-includes folders from a fresh download of WordPress.

5. bits_lynx
   Member
   Posted 3 months ago #

   I tried first by just replacing the general-template.php file but that didn't do it.
   I uninstalled the feedwordpress plugin which was the one showing the error. The problem persisted
   I manually installed the plugin. didn't do it either..

   So I finally decided to replace the whole wp-includes folder..
   Nope that didn't worked either... any suggestions??

   If I disable feedwordpress the error goes away. I use the same plugin for syndication in my other blogs but this is the first time it happens... I noticed that when I first started using the plug-in that error didn't appeared...

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