Cluster information:
Kubernetes version: v1.15.0
Cloud being used: bare-metal
Installation method: kubeadm
Host OS: ubuntu desktop 18
CNI and version: flannel
CRI and version: docker
I had network problems with my cluster so I ran kubeadm reset on both nodes. Cleared ip tables and ip links. Ran kubeadm init on master and everything seemed fine. When I tried to join the cluster on the worker node i get the following error:
Error execution phase preflight: unable to fetch the kubeadm-config ConfigMap: failed to decode cluster configuration data: no kind “ClusterConfiguration” is registered for version “kubeadm.k8s.io/v1beta2” in scheme “k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadn/scheme/scheme.go:31”