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/general-hooks/ubuntu.py", line 31, in add_info
    add_release_info(report)
  File "/usr/share/apport/general-hooks/ubuntu.py", line 294, in add_release_info
    report['CasperVersion'] = apport.packaging.get_version('casper')
  File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 123, in get_version
    raise ValueError('package %s does not exist' % package)
ValueError: package casper does not exist