You cannot complete your transaction because you are attempting to purchase an item that is already included in another packaged item in your cart.

[Tsar Bomba]

So I was trying to buy the Homefront Collection which is on sale today and it came up with this on the checkout page:
"You cannot complete your transaction because you are attempting to purchase an item that is already included in another packaged item in your cart. Please check your cart to verify that you are not purchasing an item multiple times. The most common cause would be purchasing DLC along with a deluxe version of a product that already includes the same DLC."

Problem is that the Homefront Collection was the only thing on my cart, am I supposed to remove something from the checkout page?

[999999999]

http://steamcommunity.com/app/223100/discussions/0/1484358860942362864/

[Divide et Impera]

Same problem

[999999999]

Originally posted by nconnors86:

Same problem

Homefront is not on sale right now. It is not the same problem.

If you are talking about Xcom 2 collection, post in that games own forum.