Thanks for you report and help to make ubuntu better.
Can you please try to see if you have /usr/bin/dpkg-maintscript-helper on your system? if so, can you ls -l /usr/bin/dpkg-maintscript-helper
Also dpkg -l dpkg will help there.
Thanks for you report and help to make ubuntu better.
Can you please try to see if you have /usr/bin/ dpkg-maintscrip t-helper on your system? dpkg-maintscrip t-helper
if so, can you ls -l /usr/bin/
Also dpkg -l dpkg will help there.