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我正在ROS靛藍時無法抓取包。安裝ROS後，我想安裝uvc相機，但遇到錯誤。中的NVIDIA Tegra K1安裝ROS的靛藍UVC攝像頭
ERR http://ports.ubuntu.com/ubuntu-ports/可信任/主libv4l2rds0 armhf 1.0.1-1連接失敗[IP：91.189.88.150 80] ERR http://packages.ros.org/ros/ubuntu/可信任/主 ROS的靛藍照相機校準的解析器armhf 1.11.10 -0trusty-20160629-210550-0700連接失敗[IP：64.50.233.100 80] E：無法抓取http://ports.ubuntu.com/ubuntu-ports/pool/main/v/v4l-utils/libv4l2rds0_1.0.1-1_armhf.deb 連接失敗[IP：91.189.88.150 80]
E：無法抓取 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 連接失敗[ IP：64.50.233.100 80]
E：無法提取一些檔案，也許運行apt-get update或與 --fix缺失試試？
我懷疑這是由於源列表，這裏是我的源列表。
# 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