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W: Failed to fetch http://ppa.launchpad.net/docky-core/stable/ubuntu/dists/raring/main/source/Sources  404  Not Found
W: Failed to fetch http://ppa.launchpad.net/docky-core/stable/ubuntu/dists/raring/main/binary-i386/Packages  404  Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
Mitch
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mod
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1 Answers1

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If you follow these links, you can find out they are indeed missing. There is, however, a repo for precise. So I would suggest looking into /etc/apt/sources.list (Alt+F2 - gksu gedit /etc/apt/sources.list) for this repository line and changing there raring to precise. Then sudo apt-get update one more time to see if this made desired effect.

Norrius
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