Unable to install from apt

[jash101]

I'm following these instructions to install RMF and demo: https://github.com/open-rmf/rmf#rmf-demos

Upon running sudo apt install ros-humble-rmf-demos-gz, it's unable to locate the package and throws an error:

Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
E: Unable to locate package ros-humble-rmf-demos-gz

[mxgrey]

We have recently discovered that we won't be able to release the rmf_demos packages in the humble distro because of an underlying issue with the release of a bad version of fastapi in jammy.

All the rmf_demos packages will work just fine from a source build if you use pip to install fastapi. But since it requires a pip-installed fastapi whose version is different than the fastapi installed in the underlying Ubuntu distro, it would be considered bad practice to include rmf_demos in the ROS humble release.

We'll need to update the instructions that you're referring to. Thanks for pointing that out!

[Yadunund]

Instructions updated in this PR: open-rmf/rmf#270