更新了源以后，安装Vim时提示出错

周湘伦

提示错误如下：package Vim is not available,but is referred o by another package. This may mean that the package is missing。。。
源用的是
deb http://ports.ubuntu.com/ubuntu-ports/ utopic main universe
deb-src http://ports.ubuntu.com/ubuntu-ports/ utopic main universe