Unauthorized Error

[ashishchalak]

When I perform steps given in https://github.com/javsalgar/rbac-online-talk/blob/master/01-create-user.bash

I get below error:

[app128.dvb401:/home/users/ashish.chalak/.certs/kubernetes/achalak]$ kubectl get pods error: You must be logged in to the server (Unauthorized)

Any idea on how can i solve this issue.