Cinemachine isnt workng

i was trying to inport cinemachine but it came up with an error
here is the error message
Assets/Samples/Cinemachine/3.1.2/Shared Assets/Scripts/SimplePlayerController.cs(143,9): error CS0118: ‘CharacterController’ is a namespace but is used like a type
i dont even have CharacterController imported
what should i do

Your project needs to include the physics module, because the CM samples depend on it. If you don’t want physics, then you’ll have to delete the CM samples.

where would that be?

Please show the contents of the “Packages/manifest.json” file from your project

im just gonna figure it out myself