New question #622061 on Yade: https://answers.launchpad.net/yade/+question/622061
dear sir! when I update the software, the warning as following: W:The repository 'http://ppa.launchpad.net/yade-users/external/ubuntu xenial Release' does not have a Release file., W:Data from such a repository can't be authenticated and is therefore potentially dangerous to use., W:See apt-secure(8) manpage for repository creation and user configuration details., E:Failed to fetch http://ppa.launchpad.net/yade-users/external/ubuntu/dists/xenial/main/source/Sources 404 Not Found, E:Some index files failed to download. They have been ignored, or old ones used instead. what's the problem of this and how to solve it? thanks~ -- You received this question notification because your team yade-users is an answer contact for Yade. _______________________________________________ Mailing list: https://launchpad.net/~yade-users Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
