Build fail on humble

[koonpeng]

Bug report

Required information:

• Operating system and version:
  • ubuntu 22.04
• OpenRMF installation type:
  • source
• OpenRMF version or commit hash
  • main
• ROS distribution and version:
  • humble
• ROS installation type:
  • source
• Package or library, if applicable:
  • building_map

Description of the bug

Build is failing on humble, the error comes from np.asscalar cannot be found. According to the changelogs https://numpy.org/doc/stable/release/1.23.0-notes.html?highlight=asscalar, that function is now removed in the latest release.

https://github.com/open-rmf/rmf/runs/7127749627?check_suite_focus=true contains the detailed logs.

This is blocking open-rmf/rmf#165 which in turn is blocking open-rmf/rmf-web#624.

Steps to reproduce the bug

Build with the ros ci tooling, should be able to reproduce locally by installing latest numpy. Error does not happen in the way https://github.com/open-rmf/rmf_deployment_template performs the build, I assume the ci tooling pulls in newer versions.

[codebot]

Hopefully fixed in #438