Windows Error 0xe0434352 with Anaconda3 in fresh environment

[xaedes]

When I try to import plotoptix or try any example I get following error:

----> 1 import plotoptix

~\Anaconda3\lib\site-packages\plotoptix\__init__.py in <module>
     22 # import PlotOptiX modules ###############################################
     23 from plotoptix.enums import *
---> 24 from plotoptix.npoptix import NpOptiX
     25 from plotoptix.tkoptix import TkOptiX
     26

~\Anaconda3\lib\site-packages\plotoptix\npoptix.py in <module>
     15 from plotoptix.singleton import Singleton
     16 from plotoptix._load_lib import load_optix, load_denoiser, PARAM_NONE_CALLBACK, PARAM_INT_CALLBACK
---> 17 from plotoptix.utils import _make_contiguous_vector, _make_contiguous_3d
     18 from plotoptix.enums import *
     19

~\Anaconda3\lib\site-packages\plotoptix\utils.py in <module>
     12 from plotoptix.enums import GpuArchitecture, ChannelOrder
     13
---> 14 _optix = load_optix()
     15
     16

~\Anaconda3\lib\site-packages\plotoptix\_load_lib.py in load_optix()
   1010
   1011     package_dir = os.path.dirname(__file__)
-> 1012     optix.set_library_dir(os.path.join(package_dir, BIN_PATH))
   1013     optix.set_include_dir(os.path.join(package_dir, BIN_PATH, "cuda"))
   1014     sharp_optix = optix

OSError: [WinError -532462766] Windows Error 0xe0434352

I can reproduce this on my system with a fresh anaconda evironment only installing plotoptix with pip. The versions of everything actually look good, don't they? :

Windows Version: 1903 Build 18362.418

python --version
Python 3.7.4

nVidia driver version:
436.48 DCH

reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\full" /v version

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\full
    version    REG_SZ    4.8.03752

pip freeze

certifi==2019.9.11
cycler==0.10.0
kiwisolver==1.1.0
matplotlib==3.1.1
numpy==1.17.2
packaging==19.2
Pillow==6.2.0
plotoptix==0.5.1
pyparsing==2.4.2
python-dateutil==2.8.0
six==1.12.0
wincertstore==0.2

conda list

# Name                    Version                   Build  Channel
ca-certificates           2019.8.28                     0
certifi                   2019.9.11                py37_0
cycler                    0.10.0                   pypi_0    pypi
kiwisolver                1.1.0                    pypi_0    pypi
matplotlib                3.1.1                    pypi_0    pypi
numpy                     1.17.2                   pypi_0    pypi
openssl                   1.1.1d               he774522_2
packaging                 19.2                     pypi_0    pypi
pillow                    6.2.0                    pypi_0    pypi
pip                       19.2.3                   py37_0
plotoptix                 0.5.1                    pypi_0    pypi
pyparsing                 2.4.2                    pypi_0    pypi
python                    3.7.4                h5263a28_0
python-dateutil           2.8.0                    pypi_0    pypi
setuptools                41.4.0                   py37_0
six                       1.12.0                   pypi_0    pypi
sqlite                    3.30.0               he774522_0
vc                        14.1                 h0510ff6_4
vs2015_runtime            14.16.27012          hf0eaf9b_0
wheel                     0.33.6                   py37_0
wincertstore              0.2                      py37_0

[robertsulej]

Right, your packages look good. I just checked the new driver release and it works well. Could you, please, tell me what is your graphics board?

[dakoner]

I get the same error (basically same repro info). I have a brand-new
Gigabyte GeForce RTX 2080 Windforce 8G Graphics Card, 3X Windforce Fans, 8GB 256-Bit GDDR6, GV-N2080WF3-8GC Video Card

[robertsulej]

I just tried on two windows systems, rtx 2070 and gtx 1060, with fresh anaconda3 install and it works. Investigating...

[joaoponte]

I tried with the 0.5.0 version of plotoptix and works perfectly.
The error is in the 0.5.1, curiously..

EDIT: The env is almost the same, but my GPU is a old 980M in my laptop.

[robertsulej]

@joaoponte thanks for that hint!
I can see there is an additional dependency on vcruntime140_1.dll in the windows binary rndSharpOptiX.dll that was not present in v0.5.0. This may cause problems with the dll loading which usually results with errors like "Windows Error xxxx". I have updated Visual Studio between releases, apparently something wrong happened to the configuration. Will try to fix that!

[dakoner]

Confirmed, by installing plotoptix==0.5.0, I am able to import and proceed with the notebook examples without receiving this error.

[xaedes]

I have 1080 Ti. It also works with plotoptix==0.5.0 for me.

[robertsulej]

Cleaned up the dll dependencies. Hope this will solve the problem. New release is on PyPI.

[joaoponte]

I tested the 0.5.2 version and now it is working normally. Thank you!

[robertsulej]

Great, thanks for your help, guys!

[robertsulej]

OK, sound like solved :)