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No Release File Found for ROS iron install on ubuntu jammy

I am new to ROS and I am trying to install ROS iron on my virtual machine but I am having trouble installing it. I am following the directions here (http://docs.ros.org/en/iron/Installation/Ubuntu-Install-Debians.html). But when I try to enable required repositories i keep getting this error. 

E: The repository 'http://packages.ros.org/ros/ubuntu jammy Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

I am using Ubuntu 22.04.2 LTS, codename: jammy which should be supported.

Any help would be greatly appreciated.

Asked by epps.julian@outlook.com on 2023-06-11 12:25:18 UTC

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After posting an answer, I realised this appears to be a duplicate of at least #q414948 (which I also answered, with a similar answer). We'll keep this open though, as I'd like confirmation by the OP the suggested approach solves the problem (#q414948 was never marked as answered).

Asked by gvdhoorn on 2023-06-12 01:51:35 UTC

Answers

The issue appears to be the repository you're trying to use.

The error message mentions:

E: The repository 'http://packages.ros.org/ros/ubuntu [..]

while the install instructions you link have:

http://packages.ros.org/ros2/ubuntu

note the 2 there in the url at the end of ros2.

Without the 2, you're trying to use the ROS 1 package repository. That doesn't support 22.04, which is why you get that error.

You could try editing the /etc/apt/sources.list.d/ros2.list file and add the missing 2 (then run sudo apt update). If that doesn't work either, I'd suggest removing /etc/apt/sources.list.d/ros2.list and following the install instructions again.

Asked by gvdhoorn on 2023-06-12 01:49:15 UTC

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