Cannot get to work with minikube

Hi, I've been trying to work on a Proof of Concept for jmeter-operator but need to first install on minikube and it fails at the first step:

kubectl apply -f deploy/crds/loadtest_v1alpha1_jmeter_crd.yaml
Error from server (NotFound): the server could not find the requested resource

Can you please give instructions on minikube?

Thanks