Error restarting cluster: restarting kube-proxy: waiting for kube-proxy to be up for configmap update: timed out waiting for the condition

following are the points to be remembered while starting minikube for such errors.

1) close the VirtualBox if opened.
2) delete the previous temp files generated.
3) if you are behind the proxy set the proxy.
4) then do the following...

    $ minikube stop
    $ minikube delete  
    $ minikube start