Support » Plugin: W3 Total Cache » Memcache disabled on server and cannot modify settings

  • Russ


    When setting up W3 Total Cache, I import a settings file, however I have run into a problem.

    Previously, we had memcache on our server, but that has been removed. However, the memcache setting is in the import file. After importing the settings, everything blows up. I can manually remove the W3TC files to get back into the admin panel, but when I try to reinstall the plugin, I get the following:

    Plugin could not be activated because it triggered a fatal error.
    Fatal error: Class ‘Memcache’ not found in /…/Memcached.php on line 38

    So I am thinking that this setting is in the database somewhere and I need to remove that. Any ideas on how to go about that?

    Once I get this addressed, I will change the setting to Disk Enhanced and then export those settings.

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  • If anyone comes across this problem like I did, you’ll find the config file to chnage in wp-content/cache/config/master.php

    In there, search for .engine, and some of those items will be set to memecached. Change them to ‘file’, and you should then be able to access your site.

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