Fix NotFound errors do not line up with API endpoint's group version
Fix NotFound errors do not line up with API endpoint's group version

Kubernetes-commit: 2eda19da7be9b8e0fad294bf902684f23a795dd2

kubernetes/kube-aggregator,kubernetes/kube-aggregator,caesarxuchao/kube-aggregator,caesarxuchao/kube-aggregator,caesarxuchao/kube-aggregator