摘要：ubuntu中出现如下错误：W: Failed to fetch http://cn.archive.ubuntu.com/ubuntu/dists/precise-backports/main/i18n/Translation-en Something wicked happened resolving 'cn.archive.ubuntu.com:http' (-5 - No address associated with hostname)W: Failed to fetch http://cn.archive.ubuntu.com/ubuntu/dists/precis 阅读全文