Title: warning message for object-cache.php
Last modified: December 17, 2021

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# warning message for object-cache.php

 *  Resolved [futureyoon](https://wordpress.org/support/users/futureyoon/)
 * (@futureyoon)
 * [4 years, 5 months ago](https://wordpress.org/support/topic/warning-message-for-object-cache-php/)
 * Hi
 * everytime i upgrade some plugin or change the config of the w3 total cache, i
   am getting the warning message on the backend
 * [https://snipboard.io/W7c6oZ.jpg](https://snipboard.io/W7c6oZ.jpg)
 * The Object Cache add-in file object-cache.php is not a W3 Total Cache drop-in.
   Remove it or disable Object Caching [Yes, remove it for me]
 * I enabled redis (phpredis v5.3.4) running fine.
    [https://snipboard.io/MxArsX.jpg](https://snipboard.io/MxArsX.jpg)
 * but it keeps on asking me to remove the file and then reinstall object-cache.
   php file… it’s very tedious and redundant process.
 * Is this expected behavior or I did something wrong?
 * Please advise me on this.
 * Thank you
    -  This topic was modified 4 years, 5 months ago by [futureyoon](https://wordpress.org/support/users/futureyoon/).
    -  This topic was modified 4 years, 5 months ago by [futureyoon](https://wordpress.org/support/users/futureyoon/).

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

 *  Thread Starter [futureyoon](https://wordpress.org/support/users/futureyoon/)
 * (@futureyoon)
 * [4 years, 5 months ago](https://wordpress.org/support/topic/warning-message-for-object-cache-php/#post-15171932)
 * I have happened to come across same issue
    [https://wordpress.org/support/topic/object-cache-plugin-redis/](https://wordpress.org/support/topic/object-cache-plugin-redis/)
 * does it mean that
    if I use turn on redis on W3 total cache, I should not enable‘
   Redis Object Cache’ plugin?
 * I was having an idea that both work hand-in-hand.
    Anway please kindly confirm.
 * Thank you
 *  Plugin Contributor [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/)
 * (@vmarko)
 * [4 years, 5 months ago](https://wordpress.org/support/topic/warning-message-for-object-cache-php/#post-15173158)
 * Hello [@futureyoon](https://wordpress.org/support/users/futureyoon/)
 * Thank you for reaching out and I am happy to help!
    object-cache.php is a drop-
   in needed for Object Caching. Since it does not exist by default, the plugin 
   that you are using for Object Caching drops in the object-cache.php in wp-content.
   And yes, you can use both plugins at the same time, however, if you are using
   Redis Object Cache, you should disable W3 Total Cache Object Cache in Performance
   >General settings and vice versa, to avoid conflict since both plugins W3TC Object
   Caching module and Redis Object Cache are doing the same thing – object caching.
   I hope this helps! Thanks!

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

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 * ![](https://ps.w.org/w3-total-cache/assets/icon-256x256.png?rev=1041806)
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## Tags

 * [object-cache.php](https://wordpress.org/support/topic-tag/object-cache-php/)

 * 2 replies
 * 2 participants
 * Last reply from: [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/)
 * Last activity: [4 years, 5 months ago](https://wordpress.org/support/topic/warning-message-for-object-cache-php/#post-15173158)
 * Status: resolved