When a new roll of carpet is installed, it's unwrapped and unrolled for the first time since leaving the manufacturing plant. That causes it to release an odor that is caused by volatile organic compounds (VOCs) from chemicals used during the manufacturing process. While this is quite normal, it's not necessarily an odor most people appreciate having in their house.
The good news is that it should fully dissipate within about 24 to 72 hours after carpet installation. Aurora, IL homeowners can and should help the smell make its departure by ventilating the room with open windows and/or ventilation fans. If the smell isn't totally gone in a couple of days, try sprinkling the surface of the carpet with baking soda and let it sit for 24 hours, then vacuum it up.