麒麟v10操作系统配置yum源，按照官方文档配置，然后makecache就报了下面错误，安装其它依赖也是这个问题，可以确定网络没问题，请问是什么问题呢？
Failed to download metadata for repo 'centos-cr': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried

[root@localhost yum.repos.d]# yum clean all
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
0 文件已删除
[root@localhost yum.repos.d]# yum makecache
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
CentOS-10 - CR 186 B/s | 153 B 00:00​Errors during downloading metadata for repository 'centos-cr':

• Status code: 404 for https://mirrors.tuna.tsinghua.edu.cn/centos-vault/$minorver/cr/x86_64/repodata/repomd.xml (IP: 101.6.15.130)
  错误：Failed to download metadata for repo 'centos-cr': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried