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

[Yu Ning]

I made some tests on trusty with usb-creator-{common,gtk} 0.2.56.3 in
below cases:

1. no partition table (dd if=/dev/zero of=/dev/sdb bs=1M count=1)
2. one ntfs partition
3. one ext4 partition
4. one fat32 partition
5. two ext4 partition

For case 1 & 2 & 3 & 5, after the erasing it prompt "There is not enough
free space for this image" and the "Make Startup Disk" button is
inactivated. After another erasing now the button is activated and I can
burn the ISO image successfully.

For case 5, there is also a timed out popup error, but by erasing for
the 2nd time the usbstick can be correctly erased.

Anyway since there is no TypeError popup issue reproduced, I think the
issue is properly fixed. I'll update the tags for Trusty.

** Tags removed: verification-needed
** Tags added: verification-done

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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 Committed
Status in usb-creator source package in Utopic:
  Fix Committed

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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