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I am trying to download Proton VPN for Ubuntu 18.04 and I am getting the error below.

N: Ignoring file 'mongob-org-4.0.list.save.1' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'mongob-org-4.0.list.save.2' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
E: Malformed line 1 in source list /etc/apt/sources.list.d/mongob-org-4.0.list (type)
E: The list of sources could not be read.



N: Ignoring file 'mongob-org-4.0.list.save.1' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'mongob-org-4.0.list.save.2' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
E: Malformed line 1 in source list /etc/apt/sources.list.d/mongob-org-4.0.list (type)
E: The list of sources could not be read.

Also ran command below cat /etc/apt/sources.list.d/mongob-org-4.0.list.save.1

gfgg cat /etc/apt/sources.list.d/mongob-org-4.0.list.save.2 #

Any ideas?

  • 3
    Edit your question to include the output of cat /etc/apt/sources.list.d/mongob-org-4.0.list.save.1 and cat /etc/apt/sources.list.d/mongob-org-4.0.list.save.2. – vidarlo May 20 at 17:56
  • 1
    You didn't run the commands correctly, and you didn't check your output before posting. Try again, and read @vidarlo's instruction carefully - there are two commands to run separately. – user535733 May 20 at 19:08

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