Error loading ".../isaac_sim-2023.1.0-hotfix.1/extscache/omni.pip.torch-2_0_1-2.0.2+105.1.wx64/torch-2-0-1/torch\lib\cublas64_11.dll"

I just Uninstalled and Re-installed Isaac sim on my windows device. Now I get the following error.

Error loading “c:/users/dsiss/appdata/local/ov/pkg/isaac_sim-2023.1.0-hotfix.1/extscache/omni.pip.torch-2_0_1-2.0.2+105.1.wx64/torch-2-0-1/torch\lib\cublas64_11.dll” or one of its dependencies… Traceback:
Traceback (most recent call last):
File “c:\users/dsiss/appdata/local/ov/pkg/isaac_sim-2023.1.0-hotfix.1/kit/kernel/py\omni\ext_impl_internal.py”, line 187, in custom_importer
return import_public(ext_module.path, ext_module.name, reload_enabled)
File "c:\users/dsiss/appdata/local/ov/pkg/isaac_sim-2023.1.0-hotfix.1/kit/kernel/py\carb\profiler_init
.py", line 83, in wrapper
r = f(*args, **kwds)
File “c:\users/dsiss/appdata/local/ov/pkg/isaac_sim-2023.1.0-hotfix.1/kit/kernel/py\omni\ext_impl_internal.py”, line 94, in import_public
module = import_module(module_name)
File "c:\users/dsiss/appdata/local/ov/pkg/isaac_sim-2023.1.0-hotfix.1/kit/kernel/py\carb\profiler_init
.py", line 83, in wrapper
r = f(*args, **kwds)
File “c:\users/dsiss/appdata/local/ov/pkg/isaac_sim-2023.1.0-hotfix.1/kit/kernel/py\omni\ext_impl\custom_importer.py”, line 76, in import_module
return importlib.import_module(name)
File "c:\users\dsiss\appdata\local\ov\pkg\isaac_sim-2023.1.0-hotfix.1\kit\python\lib\importlib_init
.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File “”, line 1050, in _gcd_import
File “”, line 1027, in _find_and_load
File “”, line 1006, in _find_and_load_unlocked
File “”, line 688, in _load_unlocked
File “”, line 883, in exec_module
File “”, line 241, in _call_with_frames_removed
File “c:/users/dsiss/appdata/local/ov/pkg/isaac_sim-2023.1.0-hotfix.1/exts/omni.isaac.core/omni/isaac/core/init.py”, line 11, in
from omni.isaac.core.physics_context.physics_context import PhysicsContext
File “c:/users/dsiss/appdata/local/ov/pkg/isaac_sim-2023.1.0-hotfix.1/exts/omni.isaac.core/omni/isaac/core/physics_context/init.py”, line 9, in
from omni.isaac.core.physics_context.physics_context import PhysicsContext
File “c:/users/dsiss/appdata/local/ov/pkg/isaac_sim-2023.1.0-hotfix.1/exts/omni.isaac.core/omni/isaac/core/physics_context/physics_context.py”, line 15, in
from omni.isaac.core.utils.prims import get_prim_at_path, get_prim_path, is_prim_path_valid
File “c:/users/dsiss/appdata/local/ov/pkg/isaac_sim-2023.1.0-hotfix.1/exts/omni.isaac.core/omni/isaac/core/utils/prims.py”, line 24, in
from omni.isaac.core.utils.types import SDF_type_to_Gf
File “c:/users/dsiss/appdata/local/ov/pkg/isaac_sim-2023.1.0-hotfix.1/exts/omni.isaac.core/omni/isaac/core/utils/types.py”, line 12, in
import torch
File “c:/users/dsiss/appdata/local/ov/pkg/isaac_sim-2023.1.0-hotfix.1/extscache/omni.pip.torch-2_0_1-2.0.2+105.1.wx64/torch-2-0-1/torch/init.py”, line 122, in
raise err
OSError: [WinError 127] The specified procedure could not be found. Error loading “c:/users/dsiss/appdata/local/ov/pkg/isaac_sim-2023.1.0-hotfix.1/extscache/omni.pip.torch-2_0_1-2.0.2+105.1.wx64/torch-2-0-1/torch\lib\cublas64_11.dll” or one of its dependencies.

Hi @danielle.sisserman - Can you use this tool and then freshly install Nucleus and Isaac Sim? Launcher Cleanup Tool — Omniverse Utilities latest documentation

hi @rthaker , I tried that many times. The solution for me was to delete the dll at “c:/users/dsiss/appdata/local/ov/pkg/isaac_sim-2023.1.0-hotfix.1/extscache/omni.pip.torch-2_0_1-2.0.2+105.1.wx64/torch-2-0-1/torch\lib\cublas64_11.dll”

Weird, but that just solved it. Over the three days i’ve been trying to solve this issue, I downloaded CUDA 11.8.
I can only issume that once the launcher did not find the deleted cublas64_11.dll, it used the system environmant variables to find the one that came with the manual CUDA installation.

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