thoschworks
commented
4 years ago The project is based on Ubuntu Zesty Zapus which is unsupported since Jan 13, 2018. These repositories do not exist anymore.
This project here seems to be abandoned.
Move to one of the forks like chuckcharlie's.
Reading package lists... W: The repository 'http://security.ubuntu.com/ubuntu zesty-security Release' does not have a Release file. W: The repository 'http://archive.ubuntu.com/ubuntu zesty Release' does not have a Release file. W: The repository 'http://archive.ubuntu.com/ubuntu zesty-updates Release' does not have a Release file. W: The repository 'http://archive.ubuntu.com/ubuntu zesty-backports Release' does not have a Release file. W: The repository 'http://archive.ubuntu.com/ubuntu zesty-security Release' does not have a Release file. W: The repository 'http://us.archive.ubuntu.com/ubuntu zesty Release' does not have a Release file. W: The repository 'http://us.archive.ubuntu.com/ubuntu zesty-updates Release' does not have a Release file. E: Failed to fetch http://security.ubuntu.com/ubuntu/dists/zesty-security/universe/source/Sources 404 Not Found [IP: 91.189.88.152 80] E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/zesty/universe/source/Sources 404 Not Found [IP: 91.189.88.161 80] E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/zesty-updates/universe/source/Sources 404 Not Found [IP: 91.189.88.161 80] E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/zesty-backports/universe/binary-amd64/Packages 404 Not Found [IP: 91.189.88.161 80] E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/zesty-security/multiverse/source/Sources 404 Not Found [IP: 91.189.88.161 80] E: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/zesty/multiverse/source/Sources 404 Not Found [IP: 91.189.91.26 80] E: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/zesty-updates/multiverse/source/Sources 404 Not Found [IP: 91.189.91.26 80] E: Some index files failed to download. They have been ignored, or old ones used instead.