[Bug 1279987] Re: usb-creator-gtk crashed with TypeError in __call__(): first argument must be the method signature string: GLib.Variant('a{sv}', {})

[Launchpad Bug Tracker]

This bug was fixed in the package usb-creator - 0.2.56.3

---------------
usb-creator (0.2.56.3) trusty-proposed; urgency=medium

  [ Brian Murray ]
  * udisks/backend.py: fix some calls to mount_sync that were missed in the
    port to the UDisks2 API. Thanks to Marc Culler for the patch.
    (LP: #1279987)

  [ Yu Ning ]
  * usb-creator-helper: use parent object only if there is a parent.
    (LP: #1380041)
  * usb-creator-helper: re-create the udisks client otherwise it will not
    return the newly created device or partition. (LP: #1361474, #1300361)
  * usb-creator-helper: use parted instead of udisks2 to create the new
    partition table since udisks2 uses wipefs to erase the old partition
    table, however partition table erasing is not supported in wipefs yet in
    trusty, and that would cause a timed out error.
 -- Brian Murray <brian at ubuntu.com>   Thu, 18 Dec 2014 14:48:14 -0800

** Changed in: usb-creator (Ubuntu Trusty)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1279987

Title:
  usb-creator-gtk crashed with TypeError in __call__(): first argument
  must be the method signature string: GLib.Variant('a{sv}', {})

Status in usb-creator package in Ubuntu:
  Fix Released
Status in usb-creator source package in Trusty:
  Fix Released
Status in usb-creator source package in Utopic:
  Fix Released

Bug description:
  Test Case
  ---------
  Make sure versions of the package from the -prosposed repository don't appear in the versions table for the bucket for this crash.

  Errors Bucket
  -------------
  https://errors.ubuntu.com/bucket/?id=/usr/bin/usb-creator-gtk%3ATypeError%3A%3Clambda%3E%3A_device_changed%3A_udisks_obj_added%3A_udisks_cdrom_added%3A__call__

  Crashed when trying to create a start-up disk.  Got as far as trying
  to erase the USB drive when it froze and I got the error.

  ProblemType: CrashDistroRelease: Ubuntu 14.04
  Package: usb-creator-gtk 0.2.53
  ProcVersionSignature: Ubuntu 3.13.0-8.28-generic 3.13.2
  Uname: Linux 3.13.0-8-generic x86_64
  ApportVersion: 2.13.2-0ubuntu2
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Thu Feb 13 16:17:24 2014
  ExecutablePath: /usr/bin/usb-creator-gtk
  InstallationDate: Installed on 2014-01-24 (19 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04 "Trusty Tahr" - Alpha amd64 (20140121.1)
  InterpreterPath: /usr/bin/python3.3
  ProcCmdline: /usr/bin/python3 /usr/bin/usb-creator-gtk
  PythonArgs: ['/usr/bin/usb-creator-gtk']SourcePackage: usb-creator
  Title: usb-creator-gtk crashed with TypeError in __call__(): first argument must be the method signature string: GLib.Variant('a{sv}', {})
  UDisksDump: Error: [Errno 2] No such file or directory: 'udisks'
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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