错误信息如下：

unable to get metric http_requests: unable to fetch metrics from custom metrics API: no custom metrics API (custom.metrics.k8s.io) registered

部署使用的 yaml 配置文件

apiVersion: autoscaling/v2beta2 
kind: HorizontalPodAutoscaler
metadata: 
  name: blog-web
spec: 
  scaleTargetRef: 
    apiVersion: apps/v1 
    kind: Deployment 
    name: blog-web
  minReplicas: 2
  maxReplicas: 12 
  metrics: 
    - type: Pods
      pods:
        metric:
          name: http_requests
        target:
          type: AverageValue
          averageValue: 100

请问如何解决？