yum 安装nodejs 报 Why is yum trying to install the wrong version of node.js?

错误提示

Error downloading packages:
  nodejs-0.10.42-1nodesource.el7.centos.x86_64: [Errno 256] No more mirrors to try.

解法

# yum clean all
# ls /var/cache/yum/x86_64/7/nodesource/packages 
# yum install -y nodejs