Title: WP-Cache Error
Last modified: August 18, 2016

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# WP-Cache Error

 *  [adam-](https://wordpress.org/support/users/adam-/)
 * (@adam-)
 * [19 years ago](https://wordpress.org/support/topic/wp-cache-error/)
 * Hi,
 * After installing WP-Cache (and following all the instructions so it should be
   working fine?!) I get the following error when I ever I try and do anything (
   post, add a category, change options etc):
 * Warning: Cannot modify header information – headers already sent by (output started
   at /var/www/conversion-matters/wp-config.php:25) in /var/www/conversion-matters/
   wp-includes/pluggable.php on line 275
 * This is breaking everything! Anyone know how to resolve this? Was working fine
   until I tried to install WP-Cache.
 * P.S Line 25 = define(‘WP_CACHE’, true); and Line 275 = header(“Location: $location”);
 * Thanks,
    Adam

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

 *  Thread Starter [adam-](https://wordpress.org/support/users/adam-/)
 * (@adam-)
 * [19 years ago](https://wordpress.org/support/topic/wp-cache-error/#post-557800)
 * Does no one know the answer to this? Will I have to reinstall wp :<
 *  [Tom Lany](https://wordpress.org/support/users/tomthewebmaster/)
 * (@tomthewebmaster)
 * [19 years ago](https://wordpress.org/support/topic/wp-cache-error/#post-557807)
 * Have you tried uninstalling WP-Cache just to ensure that WP-Cache is indeed breaking
   your site? After doing a quick search for it, I noticed that the screen shots
   appear to be of WordPress 1.5. I see that you are on 2.1.1. Have you verified
   that this works with your version of WordPress?
 * P.S. Don’t forget to backup often as you are making major site changes.

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

The topic ‘WP-Cache Error’ is closed to new replies.

## Tags

 * [warning](https://wordpress.org/support/topic-tag/warning/)
 * [wp-config](https://wordpress.org/support/topic-tag/wp-config/)

 * 2 replies
 * 2 participants
 * Last reply from: [Tom Lany](https://wordpress.org/support/users/tomthewebmaster/)
 * Last activity: [19 years ago](https://wordpress.org/support/topic/wp-cache-error/#post-557807)
 * Status: not resolved

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