@kumsm I’d recommend trying with koa.2a (koa.2 had a major bug - see Koa.2a has been tagged).
Could you provide more information to help with debugging? How are you building/deploying this (devstack, native installation, etc.)?
Failed to import the required Python library (setuptools) on aabsc.abc.com’s Python /usr/bin/python
What version is /usr/bin/python here?