我的指示器小程序中有一个小的红十字图标，悬停时它表示检查更新时发生错误。因此，我无法通过synaptic编辑选定的存储库，它拒绝打开对话框而只是尝试更新包列表。
Get:1 http://dl.google.com stable Release.gpg [197B]
Hit http://archive.ubuntu.com maverick Release.gpg
Ign http://archive.ubuntu.com/ubuntu/ maverick/main Translation-en
Hit http://extras.ubuntu.com maverick Release.gpg
Ign http://extras.ubuntu.com/ubuntu/ maverick/main Translation-en
Hit http://ppa.launchpad.net maverick Release.gpg
Ign http://ppa.launchpad.net/elementaryart/ppa/ubuntu/ maverick/main Translation-en
Ign http://ppa.launchpad.net/elementaryart/ppa/ubuntu/ maverick/main Translation-en_GB
Ign http://dl.google.com/linux/chrome/deb/ stable/main Translation-en
Hit http://archive.ubuntu.com/ubuntu/ maverick/main Translation-en_GB
Ign http://archive.ubuntu.com/ubuntu/ maverick/multiverse Translation-en
Hit http://archive.ubuntu.com/ubuntu/ maverick/multiverse Translation-en_GB
Ign http://archive.ubuntu.com/ubuntu/ maverick/restricted Translation-en
Hit http://archive.ubuntu.com/ubuntu/ maverick/restricted Translation-en_GB
Ign http://archive.ubuntu.com/ubuntu/ maverick/universe Translation-en
Hit http://archive.ubuntu.com/ubuntu/ maverick/universe Translation-en_GB
Hit http://archive.ubuntu.com maverick-updates Release.gpg
Ign http://archive.ubuntu.com/ubuntu/ maverick-updates/main Translation-en
Ign http://extras.ubuntu.com/ubuntu/ …