will be displayed::
ubuntu@sb4-k8s-1:~$ helm list
- Error: incompatible versions c1ient[v2.8.2] server[v2.6.1]
+ Error: incompatible versions c1ient[v2.9.1] server[v2.6.1]
ubuntu@sb4-k8s-1:~$
7. Upgrade the server-side component of helm (tiller) via `helm init --upgrade`::