Attention

As of June 30, 2025, the Isaac ROS Buildfarm for Isaac ROS 2.1 on Ubuntu 20.04 Focal is no longer supported.

Due to an isolated infrastructure event, all ROS 2 Humble Debian packages that were previously built for Ubuntu 20.04 are no longer available in the Isaac Apt Repository. All artifacts for Isaac ROS 3.0 and later are built and maintained with a more robust pipeline.

Users are encouraged to migrate to the latest version of Isaac ROS. The source code for Isaac ROS 2.1 continues to be available on the release-2.1 branches of the Isaac ROS GitHub repositories.

The original documentation for Isaac ROS 2.1 is preserved below.

Isaac Sim Issues

This page contains troubleshooting for the Nvblox Isaac Sim examples. When creating a custom scene there might be new issues which come up from the simulation side. Some of the known issues and their solutions are explained in this document.

Robot jitters on ground

This can happen if the floor of the scene used is uneven and the physics interaction between the floor and the robot is on. The two approaches to overcome this issue are:

  1. Remove physics/collisions between the floor and the robot and use a invisible ground plane instead. If the physics interactions can’t be removed for any reason then use option 2.

  2. Insert an invisible ground plane just above the floor and shift the robot to be on this ground plane. This way, the robot will interact with a flat surface instead of an uneven floor.