我在Nvidia Tegra K1中运行ROS Indigo。安装ROS后，我想安装uvc相机但遇到错误。
Err http://ports.ubuntu.com/ubuntu-ports/ trusty / main libv4l2rds0 armhf 1.0.1-1连接失败[IP：91.189.88.150 80]错误 http://packages.ros.org/ros/ubuntu/可靠/主要 ros-indigo-camera-calibration-parsers armhf 1.11.10-0trusty-20160629-210550-0700连接失败[IP：64.50.233.100 80] E：无法获取http://ports.ubuntu.com/ubuntu-ports/pool/main/v/v4l-utils/libv4l2rds0_1.0.1-1_armhf.deb 连接失败[IP：91.189.88.150 80]
E：无法获取 http://packages.ros.org/ros/ubuntu/pool/main/r/ros-indigo-camera-calibration-parsers/ros-indigo-camera-calibration-parsers_1.11.10-0trusty-20160629-210550-0700_armhf.deb 连接失败[IP：64.50.233.100 80]
E：无法获取某些档案，可能会运行apt-get update或尝试使用 --fix缺失？
我怀疑这是由于源列表，这是我的源列表。
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://ports.ubuntu.com/ubuntu-ports/ trusty main restricted universe multiverse
deb-src http://ports.ubuntu.com/ubuntu-ports/ trusty main restricted universe multiverse
## Major bug fix updates produced after the final release of the
## distribution.
deb http://ports.ubuntu.com/ubuntu-ports/ trusty-updates main restricted universe multiverse
deb-src http://ports.ubuntu.com/ubuntu-ports/ trusty-updates main restricted universe multiverse
## Uncomment the following two lines to add software from the 'universe'
## repository.
## 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://ports.ubuntu.com/ubuntu-ports/ trusty universe
# deb-src http://ports.ubuntu.com/ubuntu-ports/ trusty universe
# deb http://ports.ubuntu.com/ubuntu-ports/ trusty-updates universe
# deb-src http://ports.ubuntu.com/ubuntu-ports/ trusty-updates universe
## 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://ports.ubuntu.com/ubuntu-ports/ trusty-backports main restricted
# deb-src http://ports.ubuntu.com/ubuntu-ports/ trusty-backports main restricted
deb http://ports.ubuntu.com/ubuntu-ports/ trusty-security main restricted universe multiverse
deb-src http://ports.ubuntu.com/ubuntu-ports/ trusty-security main restricted universe multiverse
# deb http://ports.ubuntu.com/ubuntu-ports/ trusty-security universe
# deb-src http://ports.ubuntu.com/ubuntu-ports/ trusty-security universe
# deb http://ports.ubuntu.com/ubuntu-ports/ trusty-security multiverse
# deb-src http://ports.ubuntu.com/ubuntu-ports/ trusty-security multiverse
答案 0 :(得分：0)
由于链接对我来说工作正常，你可以确保你在该机器上有适当的互联网连接/例如尝试其中一个链接：
如果它不起作用，则表明您的机器存在一些与网络相关的问题