I am using Docker Desktop version 3.6.0 which has Kubernetes 1.21.3.

I am following this tutorial to get started on Istio

https://istio.io/latest/docs/setup/getting-started/

Istio is properly installed as per the instructions.

Now whenever i try to apply the Istio configuration

by issuing the command kubectl apply -f samples/bookinfo/networking/bookinfo-gateway.yaml.

I get the following error

unable to recognize "samples/bookinfo/networking/bookinfo-gateway.yaml": no matches for kind "Gateway" in version "networking.istio.io/v1alpha3"
unable to recognize "samples/bookinfo/networking/bookinfo-gateway.yaml": no matches for kind "VirtualService" in version "networking.istio.io/v1alpha3"

I checked in internet and found that the Gateway and VirtualService resources are missing.

If i perform kubectl get crd i get no resources found

Content of bookinfo-gatway.yaml

    apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: bookinfo-gateway
spec:
  selector:
    istio: ingressgateway # use istio default controller
  servers:
  - port:
      number: 80
      name: http
      protocol: HTTP
    hosts:
    - "*"
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: bookinfo
spec:
  hosts:
  - "*"
  gateways:
  - bookinfo-gateway
  http:
  - match:
    - uri:
        exact: /productpage
    - uri:
        prefix: /static
    - uri:
        exact: /login
    - uri:
        exact: /logout
    - uri:
        prefix: /api/v1/products
    route:
    - destination:
        host: productpage
        port:
          number: 9080