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Why buy an RPi 4? The 3 should be able to run things just fine (depending on what you want to do).
I'd suggest checking whether you're running a 64bit OS / version of Ubuntu. If you aren't, there are no debian packages available for your platform. See REP 2000: only arm64 Jammy gets binary packages, so apt would not find any ros-humble-* packages, as there aren't any.
running on 64 bit now. I am able to install ros2 Humble. Thanks all. I tried to install Lubuntu but no joy. The tests on the site seems to use turtlesim and without a gui that does not appear to run. Somewhere I saw a simple test where you open 2 cli sessions and had one talk and one listen but I can'r seem to find it now. But, I'll keep searching. Thanks for all the help.
I think you are after example listener and chatter: https://docs.ros.org/en/foxy/Installa...
Asked: 2022-12-05 11:01:26 -0500
Seen: 1,188 times
Last updated: Dec 06 '22
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Hi, ROS2 Humble is targeted for Ubuntu Jammy(22.04) and not 20.04, so you may either choose to upgrade to jammy via
dist-upgradeor use containers as mentioned here.I went back and checked. I am using ubuntu 22.04.1 LTS jammy
sorry for the mistake in my original post. still have the same problem
Do you have
multiverseenabled in the "Software & Updates"?Well, can't do "Software & Updates" on server version(no gui) but I did the following a CL $ sudo add-apt-repository universe $ sudo add-apt-repository multiverse $ sudo add-apt-repository restricted
I then went back to Humble install instruction and tried again (all copy and paste). Still get the same error pi@raspberrypi:~$ sudo apt install ros-humble-ros-base Reading package lists... Done Building dependency tree... Done Reading state information... Done E: Unable to locate package ros-humble-ros-base pi@raspberrypi:~$
Can you tell us the output of the following command from the command line?
5 second pause like it's searching and then just the terminal prompt. No results.
Maybe a small thing, but can you verify that you can access the internet from your RPi? Usually when I get the
unable to locate packageerror, it's because I am not connected to the internet. A good sign of the internet working fine would be when you runsudo apt update && sudo apt upgrade, and you would be able to install/upgrade the packages.Exactly, @sampreets3 thought that same thing. @Johnboy: it looks like a problem with your system (OS) and/or internet connection and not a ROS issue. Try what @sampreets suggested and if you get some errors trying pinging external websites: