Isaac Lab Troubleshooting#

This page consolidates troubleshooting information for Isaac Lab components in Isaac Sim.

Common Issues#

Installation Issues#

  • Make sure you have the correct Python version (3.9+) when setting up Isaac Lab

  • If encountering ModuleNotFoundError, ensure all dependencies are installed via pip install -e . in the Isaac Lab repository

  • For GPU compatibility issues, verify that your CUDA version matches the requirements for Isaac Lab

Performance Issues#

  • For slow training performance, try reducing the number of environments or the complexity of the scene

  • Memory issues can be resolved by setting smaller batch sizes or reducing environment complexity

  • To improve frame rates during training, consider using fewer sensors or reducing their resolution

Environment Setup Issues#

  • If robots fail to initialize, check that the URDF/USD files are correctly specified

  • For task initialization failures, ensure your task configuration files are properly formatted

  • Make sure reward terms and observations are correctly defined in your environment configurations

Policy Deployment Issues#

  • When deploying trained policies, verify the observation space matches the training environment

  • For poor policy performance after deployment, check if the simulation parameters match the training settings

  • If policy files fail to load, verify they are in the correct format supported by Isaac Lab