sources.list 中的第 63行deb-src-src http://us.archive.ubuntu.com/ubuntu/ utopic main restricted未知sudo apt-get update，導致 Synaptic 軟體套件管理器和 Ubuntu 軟體中心崩潰。刪除這一行是否安全？
我的sources.list看起來像這樣：
# deb cdrom:[Xubuntu 14.04.1 LTS _Trusty Tahr_ - Release amd64 (20140723)]/ trusty main multiverse restricted universe
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://us.archive.ubuntu.com/ubuntu/ utopic main restricted
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb http://us.archive.ubuntu.com/ubuntu/ utopic-updates main restricted
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic-updates main restricted
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://us.archive.ubuntu.com/ubuntu/ utopic universe
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic universe
deb http://us.archive.ubuntu.com/ubuntu/ utopic-updates universe
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic-updates universe
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://us.archive.ubuntu.com/ubuntu/ utopic multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic multiverse
deb http://us.archive.ubuntu.com/ubuntu/ utopic-updates multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic-updates multiverse
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://us.archive.ubuntu.com/ubuntu/ utopic-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic-backports main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ utopic-security main restricted
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic-security main restricted
deb http://us.archive.ubuntu.com/ubuntu/ utopic-security universe
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic-security universe
deb http://us.archive.ubuntu.com/ubuntu/ utopic-security multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic-security multiverse
## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
deb http://archive.canonical.com/ubuntu utopic partner
deb-src http://archive.canonical.com/ubuntu utopic partner
## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu utopic main
deb-src http://extras.ubuntu.com/ubuntu utopic main
deb http://us.archive.ubuntu.com/ubuntu/ utopic-proposed main restricted universe multiverse
# deb-src cdrom:[Xubuntu 14.04.1 LTS _Trusty Tahr_ - Release amd64 (20140723)]/ trusty main multiverse restricted universe
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic main restricted
deb-src-src http://us.archive.ubuntu.com/ubuntu/ utopic main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic-updates main restricted
deb-src-src http://us.archive.ubuntu.com/ubuntu/ utopic-updates main restricted
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic universe
deb-src-src http://us.archive.ubuntu.com/ubuntu/ utopic universe
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic-updates universe
deb-src-src http://us.archive.ubuntu.com/ubuntu/ utopic-updates universe
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic multiverse
deb-src-src http://us.archive.ubuntu.com/ubuntu/ utopic multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic-updates multiverse
deb-src-src http://us.archive.ubuntu.com/ubuntu/ utopic-updates multiverse
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic-backports main restricted universe multiverse
deb-src-src http://us.archive.ubuntu.com/ubuntu/ utopic-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic-security main restricted
deb-src-src http://us.archive.ubuntu.com/ubuntu/ utopic-security main restricted
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic-security universe
deb-src-src http://us.archive.ubuntu.com/ubuntu/ utopic-security universe
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic-security multiverse
deb-src-src http://us.archive.ubuntu.com/ubuntu/ utopic-security multiverse
## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
deb-src http://archive.canonical.com/ubuntu utopic partner
deb-src-src http://archive.canonical.com/ubuntu utopic partner
## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb-src http://extras.ubuntu.com/ubuntu utopic main
deb-src-src http://extras.ubuntu.com/ubuntu utopic main
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic-proposed main restricted universe multiverse
答案1
看起來腳本或命令出了問題並附加到了-src很多debs 中。你必須刪除很多行才能解決這個問題。或者，若要消除此損壞，請嘗試以下命令：
sed '62,$s/deb-src/deb/' /etc/apt/sources.list
檢查輸出並確保：
-src-src在任何未註解的行中都看不到（那些不以 開頭的行#）。- 一行 後面
deb跟著一行deb-src。
檢查輸出後，您可以透過執行以下命令使變更永久生效：
sudo sed -i.bak '62,$s/deb-src/deb/' /etc/apt/sources.list
答案2
不需要刪除它。只是-src從
deb-src-src http://us.archive.ubuntu.com/ubuntu/ utopic main restricted
使它看起來像：
deb-src http://us.archive.ubuntu.com/ubuntu/ utopic main restricted
我可以在您的sources.list 檔案中看到許多此類錯誤。您必須找到並編輯所有這些。
在 gedit 中打開它：sudo gedit /etc/apt/sources.list
然後在 gedit 中，編輯 > 搜尋 > 替換
搜尋：deb-src-src
替換為：deb-src