Installing Kube-Edge on raspberry pi 3 b

[LakshmiAloore]

Hi everyone!!
I am Lakshmi and I am a beginner in using raspberry pi.

From past few weeks I am working on installation of Kube-Edge on raspberry pi 3 b model. I have installed Ubuntu mate v18.0. when I am trying to run keadm init command it showing the following error

Code: Select all

Error: not able add the apt key

Can some one please help me. I really need help.
Thanks in advance.