安装mplayer
[root@localhost home]# sudo rpm -ivh rpmfusion-free-release-stable.noarch.rpm
warning: rpmfusion-free-release-stable.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID 172ff33d: NOKEY
error: Failed dependencies:
system-release >= 19 is needed by rpmfusion-free-release-19-1.noarch
按网上的方法装MPlayer,经常出现这个,这里什么问题?