while creating hog2.yaml file after editing namespace and deleting selfLink it still showing hog file already exit ..i am attaching the result below.
It seems it is trying to deploy a new hog application in a namespace where a hog application is already running. From your output, hog is running in the default namespace.
Revisit the yaml manifest and ensure the value of the namespace: property is set to the desired namespace.
@chrispokorni thank you