I am using RKE cli tool from Rancher for upgrading Kubernetes cluster, but instead of using rancher/nginx-ingress-controller:0.21 I am using kubernetes-ingress-controller/nginx-ingress-controller:0.25.0. In Kubernetes v1.13 kubernetes-ingress-controller/nginx-ingress-controller:0.25.0 works well but stopped after upgrade. You will get this error in ingress