Score:-5

18.04 Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default

br flag

E: The repository 'http://download.opensuse.org/repositories/home:/strycore/xUbuntu_16.04 Release' does not 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://packages.ros.org/ros/ubuntu $ Release' does not 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

N0rbert avatar
zw flag
Does this answer your question? [What can I do if a repository/PPA does not have a Release file?](https://askubuntu.com/questions/866901/what-can-i-do-if-a-repository-ppa-does-not-have-a-release-file)
David avatar
cn flag
Did you even bother to search the site before posting the question it is asked many many many many times.
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