ilya12

The same have happend to me after installing a new plugin and some other manipulations with attributes. ‘Add to cart’ button for variable products have stopped showing up after selecting a variation.

I have tried several advices with no luck.

I was lucky to finally fix it by simply updating to from woocommerce 2.0.9 to 2.0.10

Click ‘Screen options’ in the right top corner of the screen, and input say 100 instead of 20 items per page. Click ‘Apply’.

Fixed it!

All I’ve done:

1. Deactivated all my 25 plugins (including woocommerce itself)
2. Activated them ALL back in packs of 3.

So just deactivated all the plugins and activated them all again and the error is gone!

Don’t ask me why, I’ll never know!