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无法获取 Trusty？

tag-icon • tag-icon 14.04 command-line java ppa
无法获取 Trusty？

这是我的问题，我每隔一段时间就会更新一次，但这次不同，它引发了一个错误：

W: Failed to fetch cdrom://Ubuntu-GNOME 14.04.1 LTS _Trusty Tahr_ - Release amd64 (20140722.2)/dists/trusty/main/binary-amd64/Packages  Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs

W: Failed to fetch cdrom://Ubuntu-GNOME 14.04.1 LTS _Trusty Tahr_ - Release amd64 (20140722.2)/dists/trusty/restricted/binary-amd64/Packages  Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs

W: Failed to fetch http://ppa.launchpad.net/sun-java-community-team/sun-java6/ubuntu/dists/trusty/main/binary-amd64/Packages  404  Not Found

W: Failed to fetch http://ppa.launchpad.net/sun-java-community-team/sun-java6/ubuntu/dists/trusty/main/binary-i386/Packages  404  Not Found

E: Some index files failed to download. They have been ignored, or old ones used instead.

我希望有人能提供帮助，无论如何都要感谢。

答案1

  1. 打开系统设置。

  2. 单击“软件源”。

  3. 删除对 cdrom 的检查。

  4. 选择其他软件选项卡。

  5. 删除 sun-java PPA 的复选框。

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