Version-Release number of selected component:
dnfdragora-gui-1.0.1-5.git20170505.2a3b056.fc26

Additional info:
reporter:       libreport-2.9.1
cmdline:        /usr/bin/python3 /usr/bin/dnfdragora-updater
crash_function: __call__
exception_type: GLib.GError
executable:     /usr/bin/dnfdragora-updater
kernel:         4.11.8-300.fc26.x86_64
runlevel:       N 5
type:           Python3
uid:            1000

Truncated backtrace:
__init__.py:244:_handle_dbus_error:dnfdaemon.client.LockedError: dnf is locked by another application (36)

Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/dnfdaemon/client/__init__.py", line 368, in Unlock
    self.daemon.Unlock()
  File "/usr/lib64/python3.6/site-packages/gi/overrides/Gio.py", line 172, in __call__
    None)
GLib.GError: g-io-error-quark: GDBus.Error:org.baseurl.DnfSystem.LockedError: dnf is locked by another application (36)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/bin/dnfdragora-updater", line 25, in <module>
    dnfdragora.updater.Updater().main()
  File "/usr/lib/python3.6/site-packages/dnfdragora/updater.py", line 156, in main
    self.__tray.run(self.__main_loop())
  File "/usr/lib/python3.6/site-packages/dnfdragora/updater.py", line 151, in __main_loop
    self.__get_updates()
  File "/usr/lib/python3.6/site-packages/dnfdragora/updater.py", line 117, in __get_updates
    return self.__get_updates_func(False)
  File "/usr/lib/python3.6/site-packages/dnfdragora/updater.py", line 128, in __get_updates_func
    self.__backend.Unlock()
  File "/usr/lib/python3.6/site-packages/dnfdaemon/client/__init__.py", line 370, in Unlock
    self._handle_dbus_error(err)
  File "/usr/lib/python3.6/site-packages/dnfdaemon/client/__init__.py", line 244, in _handle_dbus_error
    raise LockedError(msg)
dnfdaemon.client.LockedError: dnf is locked by another application (36)

Local variables in innermost frame:
msg: 'dnf is locked by another application (36)'
exc: 'org.baseurl.DnfSystem.LockedError'
err: GLib.Error('GDBus.Error:org.baseurl.DnfSystem.LockedError: dnf is locked by another application', 'g-io-error-quark', 36)
self: <dnfdaemon.client.Client object at 0x7fa97cd58c18>