Hello Chen, Jerry
Welcome to Microsoft Q&A Platform, thanks for posting your query here.
Based on the details shared, looks like the network profile associated with your AKS cluster is still in use by some container network interfaces (CNIs). This is preventing the deletion of the resource group that contains the AKS cluster.
To resolve this issue, you can try the following steps:
-Identify the CNIs that are using the network profile.
-Delete the CNIs that are using the network profile.
-Once all the CNIs that are using the network profile have been deleted, you should be able to delete the AKS cluster and the associated resource group.
If the deletion of the resource group still fails, you may need to manually delete the network profile and any other associated resources. You can use the Azure portal or Azure CLI to delete these resources.
Hope this helps.