[root@master k8s]# kc describe pvc www-web-0
Name:          www-web-0
Namespace:     default
StorageClass:  my-storage-class
Status:        Pending
Volume:        
Labels:        app=nginx
Annotations:   <none>
Finalizers:    [kubernetes.io/pvc-protection]
Capacity:      
Access Modes:  
VolumeMode:    Filesystem
Used By:       web-0
Events:
  Type     Reason              Age                     From                         Message
  ----     ------              ----                    ----                         -------
  Warning  ProvisioningFailed  2m31s (x26 over 8m39s)  persistentvolume-controller  storageclass.storage.k8s.io "my-storage-class" not found

请帮忙看看怎么解决