Without looking at the deb file, this is likely a regression of 2.0
which was fixed in the recently released 2.0.1 in Debian. Pretty sure
that will eventually flow into Ubuntu as well. See the commit in
question for details if you are interested: https://salsa.debian.org
/apt-team/apt/-/commit/bf46e09f0e4b52b3c71ac20bb11e7511fc16179f

That the scanner doesn't seem to work for you is orthogonal to this
issue. You might want to contact a support channel of Ubuntu about this
with more details – bugreports tend not be a good place for getting
hardware to behave with drivers in third-party packages. Thanks for
reporting your issue none the less!

** Changed in: apt (Ubuntu)
       Status: New => Fix Committed

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https://bugs.launchpad.net/bugs/1869107

Title:
  Error when installing scanner deb on 20.04

Status in apt package in Ubuntu:
  Fix Committed

Bug description:
  Trying to install .deb for Brother ADS-2200 scanner. Worked previously
  in 18.04, 18.10, 19.04 and 19.10.

  If I double click on the .deb, Gnome Software attempts to install and
  fails with the following error:

  Failed to install file: not supported

  If I use apt to install the file manually I get the following error:

  sudo apt install ./brscanads2200ads2700w-0.1.15-1.amd64.deb
  Reading package lists... Error!
  E: Problem parsing Provides line of brscanads2200ads2700w:amd64=0.1.15-1
  E: Error occurred while processing brscanads2200ads2700w (NewVersion2)
  E: Problem with MergeList 
/home/caleb/Downloads/brscanads2200ads2700w-0.1.15-1.amd64.deb
  E: The package lists or status file could not be parsed or opened.

  I installed using dpkg without any errors.

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