On running: $ bin/trytond-admin -c CONFIG -d tryton_db --all

Traceback (most recent call last):
  File "bin/trytond-admin", line 21, in <module>
    admin.run(options)
  File "/home/prayashm/workbench/tryton-repo/trytond/trytond/admin.py", line 19, in run
    Database = backend.get('Database')
  File "/home/prayashm/workbench/tryton-repo/trytond/trytond/backend/__init__.py", line 30, in get
    ep, = pkg_resources.iter_entry_points('trytond.backend', db_type)
ValueError: need more than 0 values to unpack