使用负载均衡ALB时照着这篇文档配置的规则报错了怎么办？

问题一：https://help.aliyun.com/zh/ack/ack-managed-and-ack-dedicated/user-guide/customize-the-routing-rules-of-an-alb-ingress-1?spm=a2c4g.11186623.0.0.46e12722CklrRh#p-834-udg-okh
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
namespace: default
name: rewrite-ingress
annotations:
alb.ingress.kubernetes.io/actions.rewrite: |
[{
"type": "Rewrite",
"RewriteConfig": {
"Host": "demo.domain.ingress.top",
"Path": "/test",
"Query": "queryString"
}
}]
spec:
ingressClassName: alb
rules:

- http:
    paths:
      - path: /path
        pathType: Prefix
        backend:
          service:
            name: rewrite
            port:
              port: 80

使用负载均衡ALB时照着这篇文档配置的规则报错了怎么办？
unknown field "spec.rules[1].http.paths[0].backend.service.port.port
问题二： 我还以为这里是故意这样呢