我正在尝试设置hdp沙盒，并在一个大数据项目上工作。但当尝试执行yum安装时，我得到了以下错误

http://s3.amazonaws.com/dev.hortonworks.com/ambari/centos6/2.x/BUILDS/2.4.0.0-1225/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 403 Forbidden"
Trying other mirror.
To address this issue please refer to the below knowledge base article

https://access.redhat.com/solutions/69319

If above article doesn't help to resolve this issue please open a ticket with Red Hat Support.

Error: Cannot retrieve repository metadata (repomd.xml) for repository: AMBARI.2.4.0.0-2.x. Please verify its path and try again

我尝试了以下说明：在/etc/yum.repos.d/sandbox.repo中，更新了enabled=0
清除所有缓存
升级系统
但是yum update给了我这个错误。我甚至不能安装任何与python相关的库来继续我的工作。有人能给我解决这个错误的方法吗。谢谢！！