Depsolving loop limit reached_depsolving loop limit reached.-优快云博客

最近用centos6，遇见一个yum源的问题，刚开始yum安装老是报：

Depsolving loop limit reached

后面还跟了一堆错误：

错误：Package: xorg-x11-drv-sis-0.10.8-1.el6.x86_64 (@anaconda-CentOS-201605220104.x86_64/6.8)
Requires: xserver-abi(videodrv-19) >= 0
正在删除: xorg-x11-server-Xorg-1.17.4-9.el6.centos.x86_64 (@anaconda-CentOS-201605220104.x86_64/6.8)
xserver-abi(videodrv-19) = 0
Updated By: xorg-x11-server-Xorg-1.20.4-15.el7_9.x86_64 (updates)
Not found
错误：Package: xorg-x11-drv-acecad-1.5.0-8.el6.x86_64 (@anaconda-CentOS-201605220104.x86_64/6.8)
Requires: xserver-abi(xinput-21) >= 0
正在删除: xorg-x11-server-Xorg-1.17.4-9.el6.centos.x86_64 (@anaconda-CentOS-201605220104.x86_64/6.8)
xserver-abi(xinput-21) = 0
Updated By: xorg-x11-server-Xorg-1.20.4-15.el7_9.x86_64 (updates)
Not found
错误：Package: ibus-anthy-1.2.1-3.el6.x86_64 (@anaconda-CentOS-201605220104.x86_64/6.8)
Requires: python(abi) = 2.6
正在删除: python-2.6.6-64.el6.x86_64 (@anaconda-CentOS-201605220104.x86_64/6.8)
python(abi) = 2.6
Updated By: python-2.7.5-90.el7.x86_64 (updates)
python(abi) = 2.7
python(abi) = 2.7
Available: python-2.7.5-89.el7.x86_64 (base)
python(abi) = 2.7
python(abi) = 2.7
Available: python3-3.6.8-17.el7.i686 (base)
python(abi) = 3.6
python(abi) = 3.6
Available: python3-3.6.8-18.el7.i686 (updates)
python(abi) = 3.6
python(abi) = 3.6
Available: python34-3.4.10-4.el6.i686 (epel)
python(abi) = 3.4
错误：Package: pygtksourceview-2.8.0-1.el6.x86_64 (@anaconda-CentOS-201605220104.x86_64/6.8)
Requires: python(abi) = 2.6
正在删除: python-2.6.6-64.el6.x86_64 (@anaconda-CentOS-201605220104.x86_64/6.8)
python(abi) = 2.6