Centos8出现No module named ‘librepo’

CentOS 8 停止更新？应对错误提示：Failed to download metadata for repo ‘appstream’和
Module yaml error: Unexpected key in data: static_context [line 9 col 3]。
最近操作VPS时出现：

Failed loading plugin "osmsplugin": No module named 'librepo'

然后尝试自己安装：

dnf install **python3-librepo**
Failed loading plugin "osmsplugin": No module named 'librepo'
CentOS Linux 8 - AppStream                                                                               82  B/s |  38  B     00:00    
Error: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: No URLs in mirrorlist

手动转换CentOS Stream 8

结果去GOOGLE了一下，发现CentOS 8已经停止更新了，官方说自己手动转换成CentOS Stream 8,才可以继续正常操作。
如何转换呢，其实两条命令就可以了：

dnf --disablerepo '*' --enablerepo=extras swap centos-linux-repos centos-stream-repos

sudo dnf distro-sync

安装python3-librepo

然后再来操作：

dnf install **python3-librepo**

yum update

再来 yum update ,就再也没有错误提示啦。

但是我执行 yum update时出现如下错误：

Module yaml error: Unexpected key in data: static_context [line 9 col 3]
Module yaml error: Unexpected key in data: static_context [line 9 col 3]
Error:
 Problem: package lua-devel-5.3.4-11.el8.x86_64 requires lua(x86-64) = 5.3.4-11.
  - cannot install both lua-5.3.4-12.el8.x86_64 and lua-5.3.4-11.el8.x86_64
  - cannot install the best update candidate for package lua-5.3.4-11.el8.x86_64
  - problem with installed package lua-devel-5.3.4-11.el8.x86_64
(try to add '--allowerasing' to command line to replace conflicting packages or st' to use not only best candidate packages)

dnf upgrade libmodulemd

可以通过升级 libmodulemd 解决。该问题已在 libmodulemd-2.13.0-1.fc33 中修复。

dnf upgrade libmodulemd

Is this ok [y/N]: y

重建缓存

yum clean all
rpm --rebuilddb
yum update
yum list
yum makecache