The repository 'http://ppa.launchpad.net/t-tujikawa/ppa/ubuntu xenial Release' does not have a Release file
Solution 1
This PPA does not support your version of ubuntu. You can see that from visiting the URL http://ppa.launchpad.net/t-tujikawa/ppa/ubuntu/dists/. There is not much you can do except hoping that it will be updated (not likely as this repository seems abandoned for a long time) or find another PPA for your purpose.
Solution 2
I found out that the error came because i have installed uGet downloader and it uses ppa from http://ppa.launchpad.net/t-tujikawa/ppa/ubuntu. So to fix this, open "Software & Updates" then select "other software" tab and find the site that caused the error(in my case, http://ppa.launchpad.net/t-tujikawa/ppa/ubuntu) and uncheck it and then give authentication then reload. Done.
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Kira KE
Updated on September 18, 2022Comments
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Kira KE over 1 year
This is the result I get for
sudo apt-get update
W: The repository 'http://ppa.launchpad.net/t-tujikawa/ppa/ubuntu xenial Release' does not have a Release file. N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use. N: See apt-secure(8) manpage for repository creation and user configuration details. E: Failed to fetch http://ppa.launchpad.net/t-tujikawa/ppa/ubuntu/dists/xenial/main/binary-amd64/Packages 404 Not Found E: Some index files failed to download. They have been ignored, or old ones used instead.
How can I resolve this?
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Sebastian Stark about 6 years@karel doesn't look like a dependency issue to me
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Sebastian Stark about 6 yearsGot it Your question was a bit misleading because it looked like you installed that ppa on purpose. Good you found a way to fix your problem.