Description of problem:

$ oc get project kubevirt
NAME DISPLAY NAME STATUS
kubevirt Terminating

Version-Release number of selected component (if applicable):
openshift v3.11.69
kubernetes v1.11.0+d4cacc0
CNV 1.4

How reproducible:
not sure

Steps to Reproduce:
1. Setup up a cluster openshift+cnv
2. Make sure all the kubevirt components are deployed in the cluster
3. Delete the kubevirt project

1. oc delete project kubevirt
   4. Check the project
   5. Check the log on master controller

Actual results:
4. kubevirt project keeps in Terminating status for a long time
5. Got some log from the master:

E0227 02:25:11.137161 1 namespace_controller.go:148] unable to retrieve the complete list of server APIs: metrics.k8s.io/v1beta1: the server could not find the requested resource, subresources.kubevirt.io/v1alpha3: the server is currently unable to handle the request, upload.cdi.kubevirt.io/v1alpha1: the server could not find the requested resource
E0227 02:25:11.788511 1 namespace_controller.go:148] unable to retrieve the complete list of server APIs: metrics.k8s.io/v1beta1: the server could not find the requested resource, subresources.kubevirt.io/v1alpha3: the server is currently unable to handle the request, upload.cdi.kubevirt.io/v1alpha1: the server could not find the requested resource
E0227 02:25:13.094867 1 namespace_controller.go:148] unable to retrieve the complete list of server APIs: subresources.kubevirt.io/v1alpha3: the server is currently unable to handle the request, upload.cdi.kubevirt.io/v1alpha1: the server could not find the requested resource
E0227 02:25:15.676392 1 namespace_controller.go:148] unable to retrieve the complete list of server APIs: subresources.kubevirt.io/v1alpha3: the server is currently unable to handle the request
E0227 02:25:20.812375 1 namespace_controller.go:148] unable to retrieve the complete list of server APIs: subresources.kubevirt.io/v1alpha3: the server is currently unable to handle the request

Expected results:
Kubevirt project can be deleted normally

Additional info:

I met same problem once when we were still using subresources.kubevirt.io/v1alpha2, the kubevirt project can not deleted and keep in Terminating, but after I delete the apiserivers (#oc delete apiservices v1alpha2.subresources.kubevirt.io). the kubevirt can be deleted normally.
But for the subresources.kubevirt.io/v1alpha3, the workaround doesn't work anymore.