Version-Release number of selected component:
dnf-0.4.16-2.fc20

Additional info:
reporter:       libreport-2.2.0
cmdline:        /usr/bin/python /usr/bin/dnf -v makecache timer
executable:     /usr/bin/dnf
kernel:         3.13.5-202.fc20.x86_64
runlevel:       N 5
type:           Python
uid:            0

Truncated backtrace:
base.py:137:_add_repo_to_sack:RuntimeException: load_yum_repo() failed: 3.

Traceback (most recent call last):
  File "/usr/bin/dnf", line 35, in <module>
    main.user_main(sys.argv[1:], exit_code=True)
  File "/usr/lib/python2.7/site-packages/dnf/cli/main.py", line 242, in user_main
    errcode = main(args)
  File "/usr/lib/python2.7/site-packages/dnf/cli/main.py", line 64, in main
    return _main(base, args)
  File "/usr/lib/python2.7/site-packages/dnf/cli/main.py", line 124, in _main
    cli.run()
  File "/usr/lib/python2.7/site-packages/dnf/cli/cli.py", line 1504, in run
    return self.command.run(self.base.extcmds)
  File "/usr/lib/python2.7/site-packages/dnf/cli/commands.py", line 781, in run
    self.base.fill_sack() # performs the md sync
  File "/usr/lib/python2.7/site-packages/dnf/base.py", line 213, in fill_sack
    self._add_repo_to_sack(r.id)
  File "/usr/lib/python2.7/site-packages/dnf/base.py", line 137, in _add_repo_to_sack
    load_presto=repo.deltarpm)
RuntimeException: load_yum_repo() failed: 3.

Local variables in innermost frame:
repo: <Repo fedora>
hrepo: <_hawkey.Repo object at 0x7f4149215fd8>
self: <dnf.cli.cli.BaseCli object at 0x224e9d0>
name: 'fedora'