Prevent WooCommerce 2.0 Theme Support Warning
Your theme does not declare WooCommerce support
Your theme does not declare WooCommerce support – if you encounter layout issues please read our integration guide or choose a WooCommerce theme
If it’s only ever going to affect you and nobody else then just click the “Hide this notice” button and be done with it, but if you intend to provide your theme to customers you might want to suppress that message before the customer sees it.
A quick search of the Internet revealed a slew of people asking how to stop the message appearing, but I couldn’t see any answers at all. Not even in WooCommerce’s own documentation. Looking through the code the solution is actually incredibly simple (like so many things). Just add this somewhere appropriate in your theme’s functions.php (near the top or in an init function would make sense):
Save and done, no more message!
As Francisco points out in the comments, WooThemes now provide a page that discusses this topic. http://docs.woothemes.com/document/third-party-custom-theme-compatibility/