[Bug 1962862] Re: usb creator crashes on startup

[Paul White]

On Ubuntu 22.04 (fully updated) I started the application twice and
navigated to where I thought an ISO image was located. As I didn't have
one I downloaded a new image, restarted usb-creator and was immediately
met with the 'callable' error.

Very strange that I had an error on start-up yesterday, today I didn't
but now I do.

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https://bugs.launchpad.net/bugs/1962862

Title:
  usb creator crashes on startup

Status in usb-creator package in Ubuntu:
  Confirmed

Bug description:
  On Kubuntu 22.04 usb-creator-kde and usb-creator-gtk both crash on
  startup showing the following message:

  An unhandled exception occurred: module 'collections' has no attribute
  'Callable'

  Tests using Ubuntu 22.04 suggest that usb-creator can be started more than once but once the process of navigating to a downloaded ISO is started then the application will always crash on start-up with the error noted above.
  ---
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu78
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: KDE
  DistroRelease: Ubuntu 22.04
  InstallationDate: Installed on 2022-02-18 (12 days ago)
  InstallationMedia: Kubuntu 22.04 LTS "Jammy Jellyfish" - Alpha amd64 (20220217)
  Package: usb-creator (not installed)
  ProcVersionSignature: Ubuntu 5.15.0-18.18-generic 5.15.12
  Tags:  jammy
  Uname: Linux 5.15.0-18-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
  _MarkForUpload: True

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