If you see in the bottom green bar, congratulations! You have successfully "downloaded" and installed the Wire library.
If you get this red error message, here is the fix:
Elias groaned, rubbing his temples. It was 11:00 PM. The robotics competition was in two days, and his custom PCB—designed to control a seventeen-servo hexapod robot—was refusing to cooperate. He knew the code was logic-solid; he’d traced the loops a dozen times. The problem was the environment.
You use this library whenever you want to talk to: