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W3 Total Cache
Trying to install W3TC generates fatal error (7 posts)

  1. databell96
    Posted 11 months ago #

    I'm trying to install W3TC for the following site hosted by web.com. Go to install it and I get a fatal error message as follows:

    Fatal error: Call to undefined function w3tc_button_link() in /home/cluster1/data/q/t/706391/html/2011/wp-content/plugins/w3-total-cache/lib/W3/GenericAdminEnvironment.php on line 99

    What exactly is that and why is it occurring? I've installed W3TC before on other sites and never experienced this


  2. rbmark
    Posted 10 months ago #

    I have the same problem.

  3. michaelgs
    Posted 10 months ago #

    I too have this problem and cannot activate w3 total cache

  4. Sergey Biryukov
    WordPress Dev
    Posted 10 months ago #

    See Thomas van der Beek's reply on Fatal error: Call to undefined function w3tc_button_link(), it worked for me.

  5. rbmark
    Posted 10 months ago #

    I tried, but none of the solutions listed here work.

    Any other ideas?

  6. bobk88
    Posted 9 months ago #

    If you have any other caching plugins installed but inactive, try deleting them.

    I got a fatal error message (might have been a different one) when I first tried to install W3 Total Cache.

    Then I realized that while I had inactivated WP Super Cache (another caching plugin), I had not deleted it.

    After deleting WPSC, I was able to install W3 Total Cache without incident.

    Hope this helps.

  7. rbmark
    Posted 9 months ago #

    I've tried all the suggestions, including deleting all other cache plugins. Thanks though. I've pretty much given up on W3TC.


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