Gparted under Welcome app does not launch in live session

[Sai Vinoba]

Testing Ubuntu MATE daily-builds (20210225 ISO).

SW and version: ubuntu-mate-welcome 20.10.0-bb92cef1

Issue: Gparted under 'Installation Guide' (both main window and under 'Dual booting') in the Welcome app does not launch in live session.

Once installed, clicking on GParted pops-out authentication window and after providing password, launches properly. This does not happen in live session.

When I launch welcome app from terminal with 'snap run ubuntu-mate-welcome' and clicking on GParted, I see following error.

Traceback (most recent call last):
  File "/snap/ubuntu-mate-welcome/575/usr/bin/ubuntu-mate-welcome", line 1392, in _title_changed_cb
    self._do_command(title)
  File "/snap/ubuntu-mate-welcome/575/usr/bin/ubuntu-mate-welcome", line 1507, in _do_command
    subprocess.Popen(['gparted-pkexec'])
  File "/usr/lib/python3.9/subprocess.py", line 951, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/lib/python3.9/subprocess.py", line 1823, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'gparted-pkexec'

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1916878

[Luke Horwell (lah7)]

Fixed in https://github.com/ubuntu-mate/ubuntu-mate-welcome-legacy/commit/e949c852b20132c79067bce00bb5d6e79b7192eb