Spent all evening trying to get this to work, but having no luck. I was finally able to download a working copy of Unity 2019 (2019.4.40f1 LTS), and downloaded the assets that another person provided in these comments since they are no longer available from the Unity asset store. I add my plane, then add the RigidBodyFPS Controller, and get the following error when I press play:
Assets/Standard Assets/Utility/SimpleActivatorMenu.cs(11,16): error CS0619: ‘GUIText’ is obsolete: ‘GUIText has been removed. Use UI.Text instead.’
Can anyone help me fix this? Thanks!