Error when I open an example at the beginning

Omniverse Isaac Sim
1

2024-09-18 03:18:34 [5,628ms] [Error] [carb.scripting-python.plugin] UnicodeDecodeError: ‘gbk’ codec can’t decode byte 0xa0 in position 1096: illegal multibyte sequence

At:
E:\omniverse\pkg\isaac-sim-4.1.0\kit\python\lib\json_init_.py(293): load
e:/omniverse/pkg/isaac-sim-4.1.0/exts/omni.isaac.sensor/omni/isaac/sensor/scripts/menu.py(212): init
e:/omniverse/pkg/isaac-sim-4.1.0/exts/omni.isaac.sensor/omni/isaac/sensor/scripts/extension.py(37): on_startup
E:\omniverse\pkg\isaac-sim-4.1.0/kit/kernel/py\omni\ext_impl_internal.py(164): _startup_ext
E:\omniverse\pkg\isaac-sim-4.1.0/kit/kernel/py\omni\ext_impl_internal.py(224): startup
E:\omniverse\pkg\isaac-sim-4.1.0/kit/kernel/py\omni\ext_impl_internal.py(328): startup_extension
PythonExtension.cpp::startup()(2):
E:\omniverse\pkg\isaac-sim-4.1.0/exts/omni.isaac.kit\omni\isaac\kit\simulation_app.py(405): _start_app
E:\omniverse\pkg\isaac-sim-4.1.0/exts/omni.isaac.kit\omni\isaac\kit\simulation_app.py(199): init
E:\omniverse\pkg\isaac-sim-4.1.0\standalone_examples\api\omni.isaac.franka\follow_target_with_ik.py(12):

2024-09-18 03:18:34 [5,628ms] [Error] [omni.ext.plugin] [ext: omni.isaac.sensor-12.7.1] Failed to startup python extension.
。
。
。
Traceback (most recent call last):
File “E:\omniverse\pkg\isaac-sim-4.1.0\standalone_examples\api\omni.isaac.franka\follow_target_with_ik.py”, line 23, in
my_world.reset()
File “e:/omniverse/pkg/isaac-sim-4.1.0/exts/omni.isaac.core/omni/isaac/core/world/world.py”, line 382, in reset
task.set_up_scene(self.scene)
File “e:/omniverse/pkg/isaac-sim-4.1.0/exts/omni.isaac.core/omni/isaac/core/tasks/follow_target.py”, line 65, in set_up_scene
scene.add_default_ground_plane()
File “e:/omniverse/pkg/isaac-sim-4.1.0/exts/omni.isaac.core/omni/isaac/core/scenes/scene.py”, line 279, in add_default_ground_plane
plane = GroundPlane(prim_path=prim_path, name=name, z_position=z_position, physics_material=physics_material)
File “e:/omniverse/pkg/isaac-sim-4.1.0/exts/omni.isaac.core/omni/isaac/core/objects/ground_plane.py”, line 111, in init
collision_prim_path = get_prim_path(
File “e:/omniverse/pkg/isaac-sim-4.1.0/exts/omni.isaac.core/omni/isaac/core/utils/prims.py”, line 612, in get_prim_path
return prim.GetPath()
AttributeError: ‘NoneType’ object has no attribute ‘GetPath’

How do I fix it？

2

by the way ，there is another error that I can not open this demo
[Error] [omni.usd] Failed to open : http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/4.1/Isaac/Samples/ROS2/Scenario/carter_warehouse_apriltags_worker.usd

3

Hi there, thanks for your inquiry. Since this is related to Isaac Sim, I am going to move it over to the IS forum.

4

Could you try using Isaac Sim version 4.2.0?

5

Hi, I downloaded version 4.2.0 and I’m still getting this error, I downloaded the assets locally and I’m still getting this error and I’m noticing that it seems like a lot of people are getting this problem, do you guys have a working solution for this?It feels like it would be a good idea to clarify this issue in the official documentation.

6

I’m also getting this error while using 4.2.0. Warning: in _ReportErrors at line 2890 of /builds/omniverse/usd-ci/USD/pxr/usd/usd/stage.cpp – In </World/ground>: Could not open asset @http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/4.2/Isaac/Environments/Grid/default_environment.usd@ for reference introduced by @anon:0xaf1e240:World0.usd@</World/ground>. (recomposing stage on stage @anon:0xaf1e240:World0.usd@ <0xaf23b90>) Resulting in: return prim.GetPath()
AttributeError: ‘NoneType’ object has no attribute ‘GetPath’. I don’t have this problem in environments where I have open access to internet (i.e. my setup environment), but my training environment doesn’t allow files to reach directly out to the internet. How should I proceed?

7

Please check Setup FAQ — Omniverse IsaacSim and the following note there:

From version 4.1.0, the workstation version of Isaac Sim will access assets directly from the Cloud by default but can be changed in to use local Nucleus using the –/persistent/isaac/asset_root/default=omniverse://localhost/NVIDIA/Assets/Isaac/4.2 flag.