Missing Licenses for infra-client and inspec

I am very new to Chef and I am working my way through the Learn Chef Rally Infrastructure automation module. I am attempting to bootstrap my first node (Amazon Linux ami instance). My command :

knife bootstrap --ssh-user ec2-user --sudo -i C:\Users\mitchuj\Downloads\rus.pem --node-name node1-redhat --run-list 'recipe[learn_chef_ht

returns the license error in the subject. I have do i need to install the infra-client on my server before i bootstrap it?