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Linux Mint updates bug found

Bug Description : Failed to fetch
http://packages.linuxmint.com/dists/isadora/Release (malformed Release file?) Unable to find expected entry multiverse/binary-i386/Packages in Meta-index file Some index files failed to download, they have been ignored, or old ones used instead.

Reasoning and Solution : There is no multiverse section in the Mint repository... please edit your /etc/apt/sources.list and remove the "multiverse" keyword from the lines referring to the Mint repositories. 

How to Fix it:
This command will open the sources list.
~$ sudo gedit /etc/apt/sources.list
This is my file before editing and after editing

Before :-

deb http://packages.linuxmint.com/ isadora main upstream import multiverse import
deb http://archive.ubuntu.com/ubuntu/ lucid main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ lucid-updates main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu/ lucid-security main restricted universe multiverse
deb http://archive.canonical.com/ubuntu/ lucid partner
deb http://packages.medibuntu.org/ lucid free non-free

# deb http://archive.getdeb.net/ubuntu lucid-getdeb apps
# deb http://archive.getdeb.net/ubuntu lucid-getdeb games

After:-

deb http://packages.linuxmint.com/ isadora main upstream import
deb http://archive.ubuntu.com/ubuntu/ lucid main restricted universe
deb http://archive.ubuntu.com/ubuntu/ lucid-updates main restricted universe
deb http://security.ubuntu.com/ubuntu/ lucid-security main restricted universe
deb http://archive.canonical.com/ubuntu/ lucid partner
deb http://packages.medibuntu.org/ lucid free non-free

# deb http://archive.getdeb.net/ubuntu lucid-getdeb apps
# deb http://archive.getdeb.net/ubuntu lucid-getdeb games

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