Failed to Import STEP File

Omniverse Isaac Sim
,
1

Isaac Sim Version

4.5.0

Operating System

Ubuntu 22.04

GPU Information

  • Model: NVIDIA RTX Ada Generation
  • Driver Version: 535.183.01
  • CUDA Version: 12.2

Others

  • Asset Importer v2.12.2
  • CAD Converter v202.3.0

Topic Description

Detailed Description

I installed Isaac Sim and Isaac Lab through pip. I get an error when importing STEP files.

Steps to Reproduce

  1. Install Isaac Sim through pip according to this guide.
  2. Open Isaac Sim.
  3. Go to Tools > Extensions.
  4. Install CAD Converter and Asset Importer.
  5. Go to File > Import.
  6. Select Step File. (.STEP)

Error Messages

2025-04-02 06:48:23 [486,864ms] [Warning] [omni.kit.tool.asset_importer.importers_manager] Failed to convert assets [‘/home/user/Documents/model.STEP’] since importer failed with [Errno 2] No such file or directory: ‘/home/user/miniconda3/envs/isaac/lib/python3.10/site-packages/omni/kit’.

2

@QuantumWarden just out of curiosity, were you able to verify installations for both isaac sim and isaac lab successfully?

4

@Simplychenable Is there a process to verify the installation? If there is, could you provide the link?

I can launch Isaac Sim with no problems, I have trained some of Isaac Lab’s demos and tested the results.

I think the pip installation omits several components, including the kit executable and the launch scripts. It seems the CAD Converter searches for the kit executable and cannot find it. I am unsure how to execute kit extensions with the pip installed Isaac Sim.

For example: isaac-sim.selector.sh runs the kit executable, which I cannot find in the pip installation. What is the equivalent to this in the pip installation?

...
exec "$SCRIPT_DIR/kit/kit" "$SCRIPT_DIR/apps/isaacsim.exp.selector.kit" --ext-folder "$SCRIPT_DIR/apps"  "$@"
5

Make sure you have ADDED the CAD Converter extension to your Isaac Sim session, using the Extension Manager, and that you have it on AutoLoad.