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The Software Center closes instantly after I opened it. sudo apt-get update and all commands related to this don't work either. 

E: Typ »!DOCTYPE« in line 1 of sources list /etc/apt/sources.list.d>/medibuntu.list is unknown.
E: The sources list could not be read.

Sorry that its German but language selection doesn't work as well. It seems like the lists can't be opened :(

muru
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TheGrimReaper
  • 13

1 Answers1

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You should delete the medibuntu.list file, since the medibuntu repositories are no longer supported or maintained, and are now obsolete.

You can do so by typing

sudo rm /etc/apt/sources.list.d/medibuntu.list

In a terminal. Let me know if this works.

Jonas Czech
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