ImportError: cannot import omni.replicator.core due to missing libgf.so

[naruto.uzumaki]

I am unable to import omni.replicator.core

I sourced my conda environment following the steps outlined here:
https://docs.omniverse.nvidia.com/app_isaacsim/app_isaacsim/install_python.html#advanced-running-with-anaconda

(isaac-sim) user@pc ~/.local/share/ov/pkg/isaac_sim-2022.2.0 $ python
Python 3.7.16 (default, Jan 17 2023, 22:20:44) 
[GCC 11.2.0] :: Anaconda, Inc. on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import omni.replicator.core
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/user/.local/share/ov/pkg/isaac_sim-2022.2.0/extscache/omni.replicator.core-1.6.4+104.1.lx64.r.cp37/omni/replicator/core/__init__.py", line 1, in <module>
    from .scripts import create, distribution, example, get, modify, orchestrator, physics, randomizer, settings, trigger
  File "/home/user/.local/share/ov/pkg/isaac_sim-2022.2.0/extscache/omni.replicator.core-1.6.4+104.1.lx64.r.cp37/omni/replicator/core/scripts/create.py", line 16, in <module>
    import omni.graph.core as og
  File "/home/user/.local/share/ov/pkg/isaac_sim-2022.2.0/kit/exts/omni.graph/omni/graph/core/__init__.py", line 17, in <module>
    from . import _omni_graph_core  # noqa: F401,PLW0406
ImportError: libgf.so: cannot open shared object file: No such file or directory

I checked in my conda environment’s /lib folder and there’s no libgf.so in there.

I can import omni.isaac and not facing any issues so far with Isaac Sim. I don’t know why it is not working with replicator.

Kindly help. Thanks.

[rthaker]

Hi @naruto.uzumaki - Someone from our team will take a look and respond back. Meanwhile, are you seeing the same issue with the latest Isaac Sim 2022.2.1 release?

[ahaidu]

Hi there,

when using python before any omniverse related imports, the kit app needs to be created first:

from omni.isaac.kit import SimulationApp 
simulation_app = SimulationApp({"headless": False})

import omni.replicator.core
import omni.isaac.core

Best,
Andrei

[naruto.uzumaki]

Thank you Andrei. That solved it.

On the terminal, I tested with “headless” as True.

from omni.isaac.kit import SimulationApp 
simulation_app = SimulationApp({"headless": True})

import omni.replicator.core
import omni.isaac.core