Ubuntu - How to fix Failed to fetch...404 Not Found when apt-get update

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i get this error when trying to update with sudo apt-get update :

E: Failed to fetch http://ppa.launchpad.net/vokoscreen-dev/vokoscreen/ubuntu/dists/xenial/main/binary-amd64/Packages 404 Not Found
W: Some index files failed to download. They have been ignored, or old ones used instead.

That problem caused by your bad repository.
To Fix it, just open system settings (on top right your ubuntu) - Software & Updates - Other software - scroll down and find your broken repository, then unchecklist.

enjoy




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Tags:
apt-get update
ubuntu
linux
failed
update
sudo
404 not found
download
https
http
terminal
software
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