Adding Product Category to Shopping Cart

So this should be easy, but it’s proving difficult.

If I use this code in /woocommerce/templates/single-product/price.php it shows the category that product is in on that page:
<?php echo $product->get_categories( ', ', '<span class="posted_in">' . _n( 'Category:', 'Categories:', sizeof( get_the_terms( $post->ID, 'product_cat' ) ), 'woocommerce' ) . ' ', '.</span>' ); ?>

However, if I put that code next to the price in the /woocommerce/templates/cart/cart.php page it gives me this error:
Fatal error: Call to a member function get_categories() on a non-object in /hsphere/local/home/adultswimepisode/titanfalltournaments.com/wp-content/plugins/woocommerce/templates/cart/cart.php on line 87

I’m putting the code on line 87 of the cart.php page right after the closing php tag for $product_price

Can someone help me get this to work in the cart?

Any help greatly appreciated! ??

https://www.ads-software.com/plugins/woocommerce/