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Console:
root@ubuntu:~# apt-get install python-ros
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package python-ros
root@ubuntu:~#
I'm guessing -- as you didn't tell us -- that you are trying to follow the Installation/Source instructions for Kinetic (but the initial steps are pretty similar for other ROS releases). If so, I think you've misinterpreted the shown commands.
Step 1.1 (Prerequisites - Installing bootstrap dependencies) asks you to run:
$ sudo apt-get install python-rosdep python-rosinstall-generator python-wstool python-ros
install build-essential
Perhaps the layout could be improved, but that is supposed to be a single line, like so:
$ sudo apt-get install python-rosdep python-rosinstall-generator python-wstool python-rosinstall build-essential
Note python-rosinstall, not python-ros.
There is no package python-ros (at least not in ROS), hence the error message you received.
In general: the wiki prefixes commands with either $ or #. This is standard Linux 'terminology': the $ is for commands executed as a normal user, the # for commands executed as root.
This same formatting also gives you a hint where commands begin and end: everything following a $ or # is a single command, even if it is line-wrapped. In your case there is only a single $, so everything following it should be on a single line.
oh!!! Thank you, thank you, thank you! this is infact totally my misinterpretation. --- Yes: please change the build from source step to "$ sudo apt-get install python-rosdep python-rosinstall-generator python-wstool python-rosinstall build-essential"
so I cannot build from source with the Indigo release base?
yes thanks the wrap occurred at an inconvenient point
and -> root@ubuntu:~# printenv | grep ROS_DISTRO ROS_DISTRO=indigo
so I'm good! Thanks!
fantastic support!!! --- I now have been able to run the tutorials (well the ones that don't depend on the pre-built tutorial package) and appear to have a fully running "Bare Bones" install of ROS on the NXP LS2088ARDB (ARMv8 A72) and the LS2080ARDB (ARMv8 A57) targets.
I am not sure what to do about the "$ sudo apt-get install ros-<distro>-ros-tutorials" package as these are prolly NOT ARMv8 binaries :-)
Asked: 2016-08-30 16:22:31 -0500
Seen: 187 times
Last updated: Aug 31 '16
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