Fatal error: Call to undefined function w3tc_button_link()

I’m having the same error on wordpress 3.6

same problem here on a multi-site install (WP 3.6)

This worked for me: just remove the files/folders:

– File: /wp-content/advanced-cache.php
– Folder: /wp-content/cache/

And try again. It will skip the missing function and install the correct files/folder for you.

Thomas, tx
it’s true. deleting those files and folders solves the problem.
thank you

Thank you!

Hi, Sorry this didn’t work for me. I deleted /wp-content/advanced-cache.php but there was no folder /wp-content/cache/ to delete.
I have also tried to uninstall and re-install, then when that failed I used ftp to delete the plug-in completely, then reinstalled and deleted advanced-cache.php and tried again. All produce the same fatal error. Any help is deeply appreciated.

I’m also experiencing this, looking around for some times. I thought the file is in /wp-content/plugins/advanced-cache.php, silly. Also deleted /wp-content/cache/ and it works.

Thanks for the solution.

Ooops. Was going to the wrong wp-content.

The correct location for those files is /public_html/blog/wp-content.

I was going to /public_html/blog/wp-content/plugins/w3-total-cache/wp-content.

Deletions on the upper level enabled installation of the add-on.

Thanks

Double oops. This plug-in just broke the entire site. I can’t even get into admin now. Will have to do a complete restore from backup. Thanks, but no thanks to this addon.

Warning: require_once(WP_PLUGIN_DIR/w3-total-cache/inc/functions/compat.php) [function.require-once]: failed to open stream: No such file or directory in /home/ripsyc5/public_html/blog/wp-content/plugins/w3-total-cache/inc/define.php on line 1449

Fatal error: require_once() [function.require]: Failed opening required ‘WP_PLUGIN_DIR/w3-total-cache/inc/functions/compat.php’ (include_path=’.:/usr/lib/php:/usr/local/lib/php:/home/ripsyc5/php’) in /home/ripsyc5/public_html/blog/wp-content/plugins/w3-total-cache/inc/define.php on line 1449

Thanks Thomas.

This worked for me: just remove the files/folders:

– File: /wp-content/advanced-cache.php
– Folder: /wp-content/cache/

And try again. It will skip the missing function and install the correct files/folder for you.

its saved my time thanks

I was directed here from a thread I started about this problem. None of the solutions listed here work.

Any ideas?

Having the same problem. Any sure shot solution?

People, as per the Forum Welcome, please post your own topic. Posting in an existing topic prevents us from being able to track issues by topic. Added to which, your problem – despite any similarity in symptoms – is likely to be completely different.

i am also facing the same problem, i deleted the files and folders as stated above. Didnt work for me. Any other issues?