error validating portal-noticias-hpa

Oi Daniel, bom dia! Tudo bem? Eu não estou conseguindo criar o horizontal pod autoscaler, você pode me ajudar?

PS C:\Users\Michael\Desktop\kubernetes-alura> kubectl apply -f .\portal-noticias-hpa.yaml
error: error validating ".\\portal-noticias-hpa.yaml": error validating data: [ValidationError(HorizontalPodAutoscaler.spec): unknown field "apiVersion" in io.k8s.api.autoscaling.v2beta2.HorizontalPodAutoscalerSpec, ValidationError(HorizontalPodAutoscaler.spec): unknown field "kind" in io.k8s.api.autoscaling.v2beta2.HorizontalPodAutoscalerSpec, ValidationError(HorizontalPodAutoscaler.spec.metrics[0]): unknown field "name" in io.k8s.api.autoscaling.v2beta2.MetricSpec, ValidationError(HorizontalPodAutoscaler.spec.metrics[0]): unknown field "target" in io.k8s.api.autoscaling.v2beta2.MetricSpec, ValidationError(HorizontalPodAutoscaler.spec): unknown field "name" in io.k8s.api.autoscaling.v2beta2.HorizontalPodAutoscalerSpec, ValidationError(HorizontalPodAutoscaler.spec): missing required field "scaleTargetRef" in io.k8s.api.autoscaling.v2beta2.HorizontalPodAutoscalerSpec]; if you choose to ignore these errors, turn validation off with --validate=false

Portal-noticias-hpa

apiVersion: autoscaling/v2beta2
kind: HorizontalPodAutoscaler
metadata: 
  name: portal-noticias-hpa
spec:
  scaleTargetRef:
  apiVersion: apps/v1
  kind: Deployment
  name: portal-noticias-deployment
  minReplicas:  1
  maxReplicas:  10
  metrics:
    - type: Resource
      resource:
      name: cpu
      target:
        type: utilization
        averageUtilization: 50

Portal-noticias-deployment

apiVersion: apps/v1
kind: Deployment
metadata:
  name: portal-noticias-deployment
spec:
  template:
    metadata:
      name: portal-noticias
      labels:
        app: portal-noticias
    spec:
      containers:
        - name: portal-noticias-container
          image: aluracursos/portal-noticias:1
          ports:
            - containerPort: 80
          envFrom:
            - configMapRef:
                name: portal-configmap
          livenessProbe:
            httpGet:
              path: /
              port: 80
            periodSeconds:  10
            failureThreshold: 5
            initialDelaySeconds: 3
          readinessProbe:
            httpGet:
              path: /
              port: 80
            periodSeconds:  10
            failureThreshold: 3
            initialDelaySeconds: 20
          resources:
            requests:
              cpu:  10m
  replicas: 3
  selector:
    matchLabels:
      app:  portal-noticias