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This question already has an answer here:

An unresolved problem occurred while initializing the package information. It says I have a bug against the update manager package with this error message:

E:Malformed line 58 in source list/etc/apt/sources.list (distribution parse)

marked as duplicate by Zanna, muru, Eric Carvalho, karel, Pilot6 Mar 24 '17 at 8:50

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  • Could you please add the content of /etc/apt/sources.list to your question? – Tobias Nov 11 '15 at 19:33
  • Ok I am new to this help me out. What content? – Real Nov 11 '15 at 19:36
  • /etc/apt/sources.list is a text file. You can read it in many ways, for instance with the text editor application. So launch text editor, open /etc/apt/sources.list and copy the text from the file into your question. – Tobias Nov 11 '15 at 19:38
  • Open a terminal Ctrl-Alt-T and run the command cat /etc/apt/sources.list. Copy the output and paste in your question by editing your question. Not as screenshot, not as comments please. ;) – A.B. Nov 11 '15 at 19:44
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    As I said, edit your question and add the output and don't use the comments for that – A.B. Nov 11 '15 at 20:18
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There's a syntax error in your sources.list, so checking for package updates is failing. You should either open your sources.list file and correct the error, or you can just reset your sources by following the instructions outlined here: https://askubuntu.com/a/192388/470880

Edit - If you'd like help correcting the issue in your existing sources.list file, run the following and copy and paste the contents of your sources file here:

sudo -H gedit /etc/apt/sources.list

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