发布文件不存在
当我在终端上运行update-manager
命令时,我收到此错误“
W: The repository 'http://ppa.launchpad.net/colingille/freshlight/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/colingille/freshlight/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.
404 error
表明该存储库中没有ubuntu xenial的候选包。 这是因为xenial(16.04)不存在ppa,正如你在这里看到的那样。 最新的套餐对应15.04(生动)。 似乎WinUSB的PPA不再由其作者维护。 按照以下说明在16.04安装WinUSB。 另外,请检查此答案以获取WinUSB的替代方法。
要解决此问题,您只需删除ppa即可:
sudo add-apt-repository -r ppa:colingille/freshlight sudo apt update