Centos报错failovermethod 和 appstream 报错failovermethod 编辑/etc/yum.repos.d/CentOS-Epel.repo vim /etc/yum.repos.d/CentOS-epel.repo 将failovermethod选项删除即可 报错appstream 参考这篇文章:https://blog.csdn.net/weixin_46533577/article/details/135237039