"ubuntu-bug" crashes

[Xtien]

When I type "ubuntu-bug", after selecting X-org and "other", and typing my password for sudo, I get

christine@pengo:~$ ubuntu-bug
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.
ERROR: hook /usr/share/apport/package-hooks/source_xorg.py crashed:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apport/report.py", line 197, in _run_hook
    symb['add_info'](report, ui)
  File "/usr/share/apport/package-hooks/source_xorg.py", line 677, in add_info
    attach_nvidia_info(report, ui)
  File "/usr/share/apport/package-hooks/source_xorg.py", line 521, in attach_nvidia_info
    attach_file(report, logfile)
  File "/usr/lib/python3/dist-packages/apport/hookutils.py", line 115, in attach_file
    report[key] = read_file(path, force_unicode=force_unicode)
  File "/usr/lib/python3/dist-packages/problem_report.py", line 627, in __setitem__
    assert k.replace('.', '').replace('-', '').replace('_', '').isalnum()
AssertionError

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1510893/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Brian Murray (brian-murray)]

What release of Ubuntu is this? What version of apport are you using?

[Xtien (xtien)]

When I reported this, I was on Ubuntu 15.04. I don't know the version of apport, I update Ubuntu whenever there's an update, so I suppose I had the latest apport for 15.04 at that date.

[Launchpad Janitor (janitor)]

[Expired for apport (Ubuntu) because there has been no activity for 60 days.]