Ingress.spec.rules

 error: error validating "ingress.yaml": error validating data: [ValidationError(Ingress.spec.rules[0].http.paths[0].backend): unknown field "serviceName" in io.k8s.api.networking.v1.IngressBackend, ValidationError(Ingress.spec.rules[0].http.paths[0].backend): unknown field "servicePort" in io.k8s.api.networking.v1.IngressBackend]; if you choose to ignore these errors, turn validation off with --validate=false
error: error parsing ingress.yaml: error converting YAML to JSON: yaml: line 16: mapping values are not allowed in this context
The Ingress "youingress" is invalid: spec.rules[0].http.paths[0].backend: Required value: port name or number is required
Warning  Rejected  31s   nginx-ingress-controller  spec.rules(0).host: Required value

• kind: Ingress, nginx.ingress.kubernetes.io, networking.k8s.io/[v1Beta,v1 ], extensions/v1beta1, ingress.spec.rules, kubectl apply -f ingress.yaml, spec.tls, ingressClassName
• spec, spec., spec.containers, spec.volumes, spec.resources, ingress.spec.rules