[Bug 1960274] Re: dpkg: unrecoverable fatal error, aborting: files list file for package 'update-manager-core' is missing final newline E: Sub-process /usr/bin/dpkg returned an error code (2)

[Peter McGehee]

I am using ubuntu 20.04, python and jupyter lab on a home-made machine
with an i7 processor containing all solid state drives. I have tried
every fix I could find locate on the net - to no avail. Although I have
been programming for 50 years, I just started with ubuntu and python
(newbie).

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https://bugs.launchpad.net/bugs/1960274

Title:
  dpkg: unrecoverable fatal error, aborting:  files list file for
  package 'update-manager-core' is missing final newline E: Sub-process
  /usr/bin/dpkg returned an error code (2)

Status in update-manager package in Ubuntu:
  New

Bug description:
  dpkg: unrecoverable fatal error, aborting:
   files list file for package 'update-manager-core' is missing final newline
  E: Sub-process /usr/bin/dpkg returned an error code (2)

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