"ModuleNotFoundError: No module named 'omni.isaac'" Isaac Sim 2023.1.1 SimulationApp

Omniverse Isaac Sim
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1

Hi there,
so far I used Isaac Sim Version 2022.2.1 built in python environment without any problems.
By updating to 2023.1.1 via Omniverse Launcher and using the built in python environment I get ModuleNotFoundError: No module named ‘omni.isaac’ error for all scripts i try to run and import omni.isaac.kit SimmulationApp.

Running for example the standalone_examples/api/omni.isaac.kit/hello_world.py
with:

source setup_python_env.sh
./python.sh standalone_examples/api/omni.isaac.kit/hello_world.py

i get the following error:

  File "/home/<user>/.local/share/ov/pkg/isaac_sim-2023.1.1/standalone_examples/api/omni.isaac.kit/hello_world.py", line 11, in <module>
    from omni.isaac.kit import SimulationApp
ModuleNotFoundError: No module named 'omni.isaac'

I have already tried reinstalling Isaac Sim but it had no impact.

2

@feneu005 i am just another user passing by, not sure if the below threads from the past are relevant to some extent?

3

@Simplychenable thanks for your advice.

I think something went wrong during the isaac sim post installation.
When reinstalling Isaac sim, I always have to skip the post installation, since it’s otherwise running for hours without finishing (last time 4h).

Isaac-Sim_post_installaiton
Isaac-Sim_post_installaiton741×476 10.7 KB

Looking at the omni.isaac.sim.post.install.log the same error occurs that the module ‘omni.isaac’ is not found.
omni.isaac.sim.post.install.log (69.3 KB)

4

if it’s related to installation to the newer versions, there’s a pinned thread where the mods mentioned two possible scenarios:

see if that provides some relevant information since the log seem to indicate it’s related to missing library dependencies.

5

I solved the error: I had the same issue as in this post and solved it the same way
https://forums.developer.nvidia.com/t/no-module-named-omni-isaac/197312/8?u=feneu005

7

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