的Ubuntu 14.04重复的source.list错误

Question

当我尝试更新我的Ubuntu 14.04也举办卡桑德拉数据库，我得到以下错误：

W: Duplicate sources.list entry http://debian.datastax.com/community/ stable/main amd64 Packages (/var/lib/apt/lists/debian.datastax.com_community_dists_stable_main_binary-amd64_Packages) 
W: Duplicate sources.list entry http://debian.datastax.com/community/ stable/main i386 Packages (/var/lib/apt/lists/debian.datastax.com_community_dists_stable_main_binary-i386_Packages) 
W: You may want to run apt-get update to correct these problems 

当我检查/etc/apt/source.list文件，这些deb包实际上甚至没有。我该如何解决这个问题？即使runnung sudo apt-get更新第二次也会产生相同的错误。

Answer 1

您应该在/etc/apt/sources.list.d/文件夹中查找任何自定义apt回购。

Answer 2

。看看在/etc/apt/sources.list.d/

的cassandra.sources.list条目，则可以使用删除条目：

sudo sort -u /etc/apt/sources.list.d/cassandra.sources.list > /etc/apt/sources.list.d/cassandra.sources.list