grenade job is broken

Sahara can't be started after upgrade with the following error:

2015-10-19 14:05:23.142 22507 ERROR sahara Traceback (most recent call last):
2015-10-19 14:05:23.142 22507 ERROR sahara File "/usr/local/bin/sahara-api", line 10, in <module>
2015-10-19 14:05:23.142 22507 ERROR sahara sys.exit(main())
2015-10-19 14:05:23.142 22507 ERROR sahara File "/opt/stack/new/sahara/sahara/cli/sahara_api.py", line 53, in main
2015-10-19 14:05:23.142 22507 ERROR sahara app = server.make_app()
2015-10-19 14:05:23.142 22507 ERROR sahara File "/opt/stack/new/sahara/sahara/main.py", line 106, in make_app
2015-10-19 14:05:23.142 22507 ERROR sahara app_loader = oslo_wsgi.Loader(CONF)
2015-10-19 14:05:23.142 22507 ERROR sahara File "/usr/local/lib/python2.7/dist-packages/oslo_service/wsgi.py", line 311, in __init__
2015-10-19 14:05:23.142 22507 ERROR sahara raise ConfigNotFound(path=config_path)
2015-10-19 14:05:23.142 22507 ERROR sahara ConfigNotFound: Could not find config at api-paste.ini
2015-10-19 14:05:23.142 22507 ERROR sahara