求助：centos6每次update都会出现，怎么解决

strangk

sudo yum update
已加载插件：fastestmirror, priorities, refresh-packagekit, security
设置更新进程
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* extras: mirrors.aliyun.com
* rpmforge: ftp.cc.uoc.gr
* updates: mirrors.aliyun.com
解决依赖关系
--> 执行事务检查
---> Package java-1.7.0-openjdk.x86_64 1:1.7.0.181-2.6.14.10.el6 will be 升级
---> Package java-1.7.0-openjdk.x86_64 1:1.7.0.211-2.6.17.1.el6_10 will be an update
---> Package libmodplug.x86_64 0:0.8.7-1.el6.rf will be 升级
--> 处理依赖关系 libmodplug.so.0()(64bit)，它被软件包 gstreamer-plugins-bad-0.10.19-3.el6.rf.x86_64 需要
---> Package libmodplug.x86_64 1:0.8.8.5-1.el6 will be an update
---> Package nettle.x86_64 0:2.2-1.el6.rf will be 升级
--> 处理依赖关系 libnettle.so.4()(64bit)，它被软件包 aria2-1.16.4-1.el6.rf.x86_64 需要
---> Package nettle.x86_64 0:3.2-2.el6 will be an update
--> 完成依赖关系计算
错误：Package: aria2-1.16.4-1.el6.rf.x86_64 (@rpmforge)
          Requires: libnettle.so.4()(64bit)
          正在删除: nettle-2.2-1.el6.rf.x86_64 (@rpmforge)
              libnettle.so.4()(64bit)
          Updated By: nettle-3.2-2.el6.x86_64 (epel)
              Not found
          Available: nettle-2.1-1.el6.rf.x86_64 (rpmforge)
              libnettle.so.4()(64bit)
          Available: nettle-1.15-1.el6.rf.x86_64 (rpmforge)
              Not found
错误：Package: gstreamer-plugins-bad-0.10.19-3.el6.rf.x86_64 (@rpmforge)
          Requires: libmodplug.so.0()(64bit)
          正在删除: libmodplug-0.8.7-1.el6.rf.x86_64 (@rpmforge)
              libmodplug.so.0()(64bit)
          Updated By: 1:libmodplug-0.8.8.5-1.el6.x86_64 (epel)
              Not found
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest


如上所写，我怀疑是依赖问题，可是不会解决，求助各位大婶，请指点，谢谢