I tried updated apt-get on my Ubuntu system due to some issues
sudo apt-get update
But it gives me this error
Hit:1 http://ppa.launchpad.net/webupd8team/java/ubuntu yakkety InRelease
Ign:2 http://in.archive.ubuntu.com/ubuntu yakkety InRelease
Ign:3 http://security.ubuntu.com/ubuntu yakkety-security InRelease
Err:4 http://security.ubuntu.com/ubuntu yakkety-security Release
404 Not Found [IP: 91.189.88.149 80]
Ign:5 http://in.archive.ubuntu.com/ubuntu yakkety-updates InRelease
Ign:6 http://in.archive.ubuntu.com/ubuntu yakkety-backports InRelease
Err:7 http://in.archive.ubuntu.com/ubuntu yakkety Release
404 Not Found [IP: 91.189.88.161 80]
Err:8 http://in.archive.ubuntu.com/ubuntu yakkety-updates Release
404 Not Found [IP: 91.189.88.161 80]
Err:9 http://in.archive.ubuntu.com/ubuntu yakkety-backports Release
404 Not Found [IP: 91.189.88.161 80]
Reading package lists... Done
E: The repository 'http://security.ubuntu.com/ubuntu yakkety-security Release' does no longer have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://in.archive.ubuntu.com/ubuntu yakkety Release' does no longer have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://in.archive.ubuntu.com/ubuntu yakkety-updates Release' does no longer have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://in.archive.ubuntu.com/ubuntu yakkety-backports Release' does no longer have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
I tried some of the solutions given for 'Releases not found' but none of them seem to work. Not sure how to solve this. Highly appreciate any help.
