Error validating data

Olá pessoal, ao tentar criar a svc-pod-2.yaml, ocorreu o erro abaixo, alguém pode me ajudar por favor?

pod-2.yaml

apiVersion: v1
kind: Pod
metadata:
  name: pod-2
  labels:
    app: segundo-pod
spec:
  containers:
    - name: container-pod-2
      image: nginx:latest
      ports:
        - containerPort: 80

svc-pod-2.yaml

apiVersion: v1
kind: Service
metadata: 
  name: svc-pod-2 
spec:
  type: ClusterIP
  selector:
    app: segundo-pod
    ports:
      - port: 80

Erro após tentativa de criação do svc-pod-2yaml

PS C:\Users\Michael\Desktop\kubernetes-alura> kubectl apply -f .\svc-pod-2.yaml
error: error validating ".\\svc-pod-2.yaml": error validating data: ValidationError(Service.spec.selector.ports): invalid type for io.k8s.api.core.v1.ServiceSpec.selector: got "array", expected "string"; if you choose to ignore these errors, turn validation off with --validate=false