MayaUSD 0.8.0 for Maya 2022 appears to be unable to load if user has already built Pixar's USD tools and binaries and added them to their path.

[kmack]

When trying to load the MayaUSD plugins in Maya 2022, I get the following response:

// Error: file: C:/Program Files/Autodesk/Maya2022/scripts/others/pluginWin.mel line 316: Unable to dynamically load : C:/Program Files/Autodesk/MayaUSD/Maya2022/0.8.0/mayausd/MayaUSD3/plugin/adsk/plugin/mayaUsdPlugin.mll
The specified procedure could not be found.
 // 
// Error: file: C:/Program Files/Autodesk/Maya2022/scripts/others/pluginWin.mel line 316: The specified procedure could not be found.
 (mayaUsdPlugin) // 
// Error: file: C:/Program Files/Autodesk/Maya2022/scripts/others/pluginWin.mel line 316: Unable to dynamically load : C:/Program Files/Autodesk/MayaUSD/Maya2022/0.8.0/mayausd/MayaUSD3/lib/maya/mtoh.mll
The specified procedure could not be found.
 // 
// Error: file: C:/Program Files/Autodesk/Maya2022/scripts/others/pluginWin.mel line 316: The specified procedure could not be found.
 (mtoh) //

I had previously built Pixar's USD binaries and tools according to the directions here.

Verified MAYA_MODULE_PATH and determined that only one MayaUSD plugin is visible to Maya and that it's the expected one.

getenv "MAYA_MODULE_PATH";
// Result: 
C:/Program Files/Autodesk/Maya2022/modules;
E:/OneDrive/Documents/maya/2022/modules;
E:/OneDrive/Documents/maya/modules;
C:/Program Files/Common Files/Autodesk Shared/Modules/maya/2022 
// 

Full OS PATH contents:

import os
print(os.environ['PATH'])
C:\Program Files\Autodesk\Maya2022\Python37\lib\site-packages\PySide2;
C:/Program Files/Autodesk/Maya2022/plug-ins/ATF/ATF;
C:/Program Files/Autodesk/Maya2022/plug-ins/ATF/ATF/alias;
C:/Program Files/Autodesk/Maya2022/bin/Cg;
C:/Program Files/Autodesk/Maya2022/bin;
C:/Program Files/Autodesk/Maya2022/bin3;
C:/Python37/Scripts/;
C:/Python37/;
C:/Program Files (x86)/Common Files/Intel/Shared Libraries/redist/intel64_win/compiler;
C:/Program Files (x86)/Common Files/Intel/Shared Libraries/redist/intel64/compiler;
C:/Windows/system32;
C:/Windows;
C:/Windows/System32/Wbem;
C:/Windows/System32/WindowsPowerShell/v1.0/;
C:/Windows/System32/OpenSSH/;
C:/Program Files/NVIDIA Corporation/NVIDIA NvDLISR;
C:/Program Files (x86)/NVIDIA Corporation/PhysX/Common;
C:/Program Files/Git/cmd;
C:/Program Files/Git LFS;
C:/Program Files/Calibre2/;
C:/Program Files/7-Zip;
C:/Program Files/Microsoft VS Code/bin;
C:/Program Files/FFMPEG/bin;
C:/Program Files/dotnet/;
C:/Program Files/Perforce/;
C:/Program Files/nodejs/;
C:/ProgramData/chocolatey/bin;
C:/Program Files/CMake/bin;
C:/Program Files/NASM;
C:/USD/bin;
C:/USD/lib;
C:/NVPACK/android-sdk-windows/build-tools;
C:/NVPACK/android-sdk-windows/platform-tools;
C:/NVPACK/android-sdk-windows/extras/android/support;
C:/NVPACK/android-sdk-windows/tools;
C:/NVPACK/gradle-4.4.1/bin;
C:/NVPACK/jdk1.8.0_77/bin;
C:/NVPACK/android-ndk-r18b;
C:/Users/kmack/AppData/Local/Microsoft/WindowsApps;
C:/Users/kmack/AppData/Local/GitHubDesktop/bin;
C:/Users/kmack/.dotnet/tools;
C:/Program Files/JetBrains/PyCharm Community Edition 2020.3.2/bin;
C:/Users/kmack/AppData/Roaming/npm;
C:/Users/kmack/AppData/Local/atom/bin;
C:/Program Files/Android/Android Studio/jre/bin;
C:/Users/kmack/AppData/Local/Android/Sdk/platform-tools;
C:/Users/kmack/AppData/Local/Android/Sdk/tools;
C:/Program Files/Autodesk/Bifrost/Maya2022/2.2.1.0/bifrost/bin;
C:/Program Files/Autodesk/Maya2022/plug-ins/MASH/bin;
C:/Program Files/Autodesk/MayaUSD/Maya2022/0.8.0/mayausd/MayaUSD3/lib;
C:/Program Files/Autodesk/MayaUSD/Maya2022/0.8.0/mayausd/USD3/bin;
C:/Program Files/Autodesk/MayaUSD/Maya2022/0.8.0/mayausd/USD3/lib;
C:/Program Files/Autodesk/Arnold/maya2022/bin;
C:/Program Files/Allegorithmic/Substance in Maya/2022/lib;
C:/Program Files/Autodesk/Bifrost/Maya2022/2.2.1.0/vnn/bin;
C:/Program Files/Autodesk/Maya2022/plug-ins/xgen/bin

mayausd.mod contents:

+ USD 0.20.11-gold-take2 C:\Program Files\Autodesk\MayaUSD\Maya2022\0.8.0\mayausd/USD%MAYA_PYTHON_VERSION%
icons: 
plug-ins: 
presets: 
scripts: 
resources: 
PYTHONPATH+:=lib/python
PATH+:=bin
PATH+:=lib
USD_LOCATION:=
MAYA_USD_VERSION=0.20.11-gold-take2

+ MayaUSD_LIB 0.8.0 C:\Program Files\Autodesk\MayaUSD\Maya2022\0.8.0\mayausd/MayaUSD%MAYA_PYTHON_VERSION%
icons: lib/icons
plug-ins: 
presets: 
scripts: 
resources: 
PATH+:=lib
PYTHONPATH+:=lib/python
PXR_PLUGINPATH_NAME+:=lib/usd
MAYAUSD_VERSION=0.8.0


+ MayaUSD 0.8.0 C:\Program Files\Autodesk\MayaUSD\Maya2022\0.8.0\mayausd/MayaUSD%MAYA_PYTHON_VERSION%/plugin/adsk
plug-ins: plugin

+ MTOH 0.8.0 C:\Program Files\Autodesk\MayaUSD\Maya2022\0.8.0\mayausd/MayaUSD%MAYA_PYTHON_VERSION%/lib
icons: 
plug-ins: maya
presets: 
scripts: 
resources: 

Recommended steps?
Thanks!

[kmack]

Verified that removing these entries from my PATH does allow the plugin to load, but of course prevents USDView from running:

C:/USD/bin;
C:/USD/lib;

[ppt-adsk]

Hi @kmack , clearly you're running into a version difference between the USD you have in C:/USD and the one we use in Maya. We do have a usdview included in the maya-usd distribution; can you use that?

[kmack]

Hi ppt-adsk - thanks for getting back to me!

Exploring this now - looks like there's a bit more cruft from the existing USD setup that I need to clear out of the system - working on digging that out now:

PS C:\Program Files\Autodesk\MayaUSD\Maya2022\0.8.0\mayausd\USD3\bin> .\usdview M:\USD\Examples\Attic_NVIDIA_506\Attic_NVIDIA\Attic_NVIDIA.usd
Traceback (most recent call last):
  File "C:\Program Files\Autodesk\MayaUSD\Maya2022\0.8.0\mayausd\USD3\bin\usdview", line 28, in <module>
    import pxr.Usdviewq as Usdviewq
  File "C:\USD\lib\python\pxr\Usdviewq\__init__.py", line 30, in <module>
    from .common import Timer
  File "C:\Python37\lib\site-packages\shiboken2\files.dir\shibokensupport\__feature__.py", line 142, in _import
    return original_import(name, *args, **kwargs)
  File "C:\USD\lib\python\pxr\Usdviewq\common.py", line 28, in <module>
    from pxr import Ar, Tf, Sdf, Kind, Usd, UsdGeom, UsdShade
  File "C:\Python37\lib\site-packages\shiboken2\files.dir\shibokensupport\__feature__.py", line 142, in _import
    return original_import(name, *args, **kwargs)
  File "C:\USD\lib\python\pxr\Ar\__init__.py", line 24, in <module>
    from . import _ar
  File "C:\Python37\lib\site-packages\shiboken2\files.dir\shibokensupport\__feature__.py", line 142, in _import
    return original_import(name, *args, **kwargs)
ImportError: DLL load failed: The specified module could not be found.
PS C:\Program Files\Autodesk\MayaUSD\Maya2022\0.8.0\mayausd\USD3\bin>

This may be a leftover PYTHONPATH assignment.

[kmack]

Hmm. Correcting PYTHONPATH cleared a few issues but still have a few includes failing.

PATH:

PS C:\Program Files\Autodesk\MayaUSD\Maya2022\0.8.0\mayausd\USD3\bin> echo $env:PATH
C:\Python37\Scripts\;C:\Python37\;C:\Program Files (x86)\Common Files\Intel\Shared Libraries\redist\intel64_win\compiler;C:\Program Files (x86)\Common Files\Intel\Shared Libraries\redist\intel64\compiler;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Program Files\NVIDIA Corporation\NVIDIA NvDLISR;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\Git\cmd;C:\Program Files\Git LFS;C:\Program Files\Calibre2\;C:\Program Files\7-Zip;C:\Program Files\Microsoft VS Code\bin;C:\Program Files\FFMPEG\bin;C:\Program Files\dotnet\;C:\Program Files\Perforce\;C:\Program Files\nodejs\;C:\ProgramData\chocolatey\bin;C:\Program Files\CMake\bin;C:\Program Files\NASM;C:\NVPACK\android-sdk-windows\build-tools;C:\NVPACK\android-sdk-windows\platform-tools;C:\NVPACK\android-sdk-windows\extras\android\support;C:\NVPACK\android-sdk-windows\tools;C:\NVPACK\gradle-4.4.1\bin;C:\NVPACK\jdk1.8.0_77\bin;C:\NVPACK\android-ndk-r18b;C:\Users\kmack\AppData\Local\Microsoft\WindowsApps;C:\Users\kmack\AppData\Local\GitHubDesktop\bin;C:\Users\kmack\.dotnet\tools;C:\Program Files\JetBrains\PyCharm Community Edition 2020.3.2\bin;C:\Users\kmack\AppData\Roaming\npm;C:\Users\kmack\AppData\Local\atom\bin;C:\Program Files\Android\Android Studio\jre\bin;C:\Users\kmack\AppData\Local\Android\Sdk\platform-tools;C:\Users\kmack\AppData\Local\Android\Sdk\tools

PYTHONPATH:

PS C:\Program Files\Autodesk\MayaUSD\Maya2022\0.8.0\mayausd\USD3\bin> echo $env:PYTHONPATH
C:\Program Files\Autodesk\MayaUSD\Maya2022\0.8.0\mayausd\USD3\lib\python

USDView Test:

PS C:\Program Files\Autodesk\MayaUSD\Maya2022\0.8.0\mayausd\USD3\bin> .\usdview M:\USD\Examples\Attic_NVIDIA_506\Attic_NVIDIA\Attic_NVIDIA.usd
Traceback (most recent call last):
  File "C:\Program Files\Autodesk\MayaUSD\Maya2022\0.8.0\mayausd\USD3\bin\usdview", line 28, in <module>
    import pxr.Usdviewq as Usdviewq
  File "C:\Program Files\Autodesk\MayaUSD\Maya2022\0.8.0\mayausd\USD3\lib\python\pxr\Usdviewq\__init__.py", line 30, in <module>
    from .common import Timer
  File "C:\Python37\lib\site-packages\shiboken2\files.dir\shibokensupport\__feature__.py", line 142, in _import
    return original_import(name, *args, **kwargs)
  File "C:\Program Files\Autodesk\MayaUSD\Maya2022\0.8.0\mayausd\USD3\lib\python\pxr\Usdviewq\common.py", line 28, in <module>
    from pxr import Ar, Tf, Sdf, Kind, Usd, UsdGeom, UsdShade
  File "C:\Python37\lib\site-packages\shiboken2\files.dir\shibokensupport\__feature__.py", line 142, in _import
    return original_import(name, *args, **kwargs)
  File "C:\Program Files\Autodesk\MayaUSD\Maya2022\0.8.0\mayausd\USD3\lib\python\pxr\Ar\__init__.py", line 24, in <module>
    from . import _ar
  File "C:\Python37\lib\site-packages\shiboken2\files.dir\shibokensupport\__feature__.py", line 142, in _import
    return original_import(name, *args, **kwargs)
ImportError: DLL load failed: The specified module could not be found.

[ppt-adsk]

Hi @kmack, I've consulted our Python installation oracle, and he's recommended the following: make sure you run usdview using the Autodesk mayapy Python interpreter, i.e.

mayapy \path\to\bin\usdview yourfile

Also make sure to:
• Add the USD bin/lib folder to PATH (if on Windows)
• Add USD/lib/python to PYTHONPATH
• Install the OpenGL python module

The OpenGL Python module is 'PyOpenGL==3.1.0', i.e.

mayapy -m pip install PyOpenGL==3.1.0

Hope this helps!