"Failed to save output to file "Traceback (most recent call last):" when clicking "Render to Disk"

marshallgmoore93D3R · ‎01-11-2021

Hey all, I'm having some issues getting Arnold to work in Houdini Indie 18.5.408 on Windows. Each time I try and render I get the following error message:

Failed to save output to file "Traceback (most recent call last):
File "C:/Users/marsh/htoa/htoa-5.5.0.2_r1582e12_houdini-18.5.408/htoa-5.5.0.2_r1582e12_houdini-18.5.408/soho/arnold.py", line 14, in <module>
HaSession.getSession().run()
File "C:/Users/marsh/htoa/htoa-5.5.0.2_r1582e12_houdini-18.5.408/htoa-5.5.0.2_r1582e12_houdini-18.5.408/scripts/python\htoa\session.py", line 505, in run
verbosity = log_levels[self.rop.sprop('ar_log_verbosity')]
KeyError: (None,)
".

Here's what my houdini.env looks like:

#
# Houdini Environment Settings
#
# The contents of this file are read into the environment
# at startup.  They will override any existing entries in
# the environment.
#
# The syntax is one entry per line as follows:
#    VAR = VALUE
#
# Values may be quoted
#    VAR = "VALUE"
#
# Values may be empty
#    VAR = 
#

# Example:
#
# HOUDINI_NO_SPLASH = 1

OCIO=C:\Users\marsh\Documents\OpenColorIO-Configs-master\OpenColorIO-Configs-master\aces_1.0.3\config.ocio

RMANTREE=C:\Program Files\Pixar\RenderManProServer-23.5
RFHTREE=C:\Program Files\Pixar\RenderManForHoudini-23.5
#Uncomment the following line only when using Solaris
#RMAN_PROCEDURALPATH = $RFHTREE/18.5.351/openvdb;&
#HOUDINI_PATH=$RFHTREE\18.5.351;&
#PATH=$RMANTREE\bin;&

PATH = "$PATH;C:/ProgramData/Redshift/bin;$RMANTREE\bin;C:/Users/marsh/htoa/htoa-5.5.0.2_r1582e12_houdini-18.5.408/htoa-5.5.0.2_r1582e12_houdini-${HOUDINI_VERSION}/scripts/bin;&"
HOUDINI_PATH = "$HOUDINI_PATH;C:/ProgramData/Redshift/Plugins/Houdini/18.5.408;$RFHTREE\18.5.351;C:/Users/marsh/htoa/htoa-5.5.0.2_r1582e12_houdini-18.5.408/htoa-5.5.0.2_r1582e12_houdini-${HOUDINI_VERSION};&"

Some other info that may be relavent:

I've installed and used Arnold in C4D in the past without issue (no longer use C4D).
I have Maya installed with an Indie license
I have a yearly sub to Arnold via Autodesk, but it doesn't show in the Autodesk Desktop App (not sure if it's supposed to)
From the top menu, click "Arnold > Licensing > License Manager" shows that I have a license available, but gives no expiration date (Expiration date: [nothing]).
I haven't had many issues getting V-ray, Renderman, or Redshift to work. Arnold seems to be the troublemaker for me

I've put a pretty solid effort into trying to resolve this, but am out of ideas at this point. If anyone has any ideas, I'd really appreciate it.

Stephen.Blair · ‎01-11-2021

This is an problem with the environment, most likely HOUDINI_PATH

Can you get HOUDINI_PATH from Help > About Houdini > Show Details?

In general, I would remove all other plugins from HOUDINI_PATH, get HtoA working, and then put the other stuff back.

// Stephen Blair
// Arnold Renderer Support

marshallgmoore93D3R · ‎01-11-2021

Thanks, Stephen. I've removed everything else from from the houdini.env. I've also ensured that my packages directory in C:\Users\marsh\Documents\houdini18.5\packages is empty. What I'm finding strange is that Houdini still looks to be aware that the other renderers that USED to exist in the HOUDINI_PATH and PATH variables in the "About Houdini" text. But I'm still a little new to Houdini, so I don't know what to expect. Is there some sort of cache that needs to be emptied? I'm also seeing some semicolons butted up next to each other in PATH, which seems odd. I just don't know how to get rid of this stuff if not via the houdini.env file.

Anyways, here's the result of "Help > About Houdini > Show details". Thanks for your help.

Houdini FX Version 18.5.408

Operating System:         Windows 10 Pro x64
Number of Cores:          20
Physical Memory:          63.87 GB
Number of Screens:        3
    Screen 0:             2560 x 1080 at 0,0
    Work Area 0:          2560 x 1040 at 0,0
    Screen 0 DPI:         81.8
    Screen 1:             1920 x 1200 at 2560,0
    Work Area 1:          1920 x 1160 at 2560,0
    Screen 1 DPI:         94.1
    Screen 2:             1920 x 1200 at -1920,0
    Work Area 2:          1920 x 1160 at -1920,0
    Screen 2 DPI:         94.1

Build platform:           windows-x86_64-cl19.16
Python Version:           2.7
Qt Version:               5.12.6
UI Scale:                 1.000

OpenGL Vendor:            NVIDIA Corporation
OpenGL Renderer:          GeForce GTX 1080 Ti/PCIe/SSE2
OpenGL Version:           4.6.0 NVIDIA 457.51
OpenGL Shading Language:  4.60 NVIDIA
Detected:                 NVidia Consumer
                          11264 MB
                          457.51.0.0

Supported Extensions not in OpenGL 3.3 (Version):
    EXT_extensions_string                  
    GL_ARB_base_instance                    (4.2)
    GL_ARB_bindless_texture                
    GL_ARB_bindless_texture                
    GL_ARB_buffer_storage                   (4.4)
    GL_ARB_clear_buffer                     (4.3)
    GL_ARB_compatibility                   
    GL_ARB_compute_shader                   (4.3)
    GL_ARB_copy_texture                     (4.3)
    GL_ARB_debug_output                    
    GL_ARB_draw_indirect                    (4.0)
    GL_ARB_gpu_shader5                      (4.0)
    GL_ARB_gpu_shader_fp64                  (4.0)
    GL_ARB_multi_bind                       (4.4)
    GL_ARB_program_interface_query          (4.3)
    GL_ARB_robustness                      
    GL_ARB_sample_shading                   (4.0)
    GL_ARB_separate_shader_objects          (4.1)
    GL_ARB_shader_atomic_counters           (4.2)
    GL_ARB_shader_image_load_store          (4.2)
    GL_ARB_shader_storage_buffer_object     (4.3)
    GL_ARB_shading_language_packing         (4.2)
    GL_ARB_tessellation_shader              (4.0)
    GL_ARB_texture_buffer_object_rgb32      (4.0)
    GL_ARB_texture_cube_map_array           (4.0)
    GL_ARB_texture_filter_anisotropic       (4.6)
    GL_ARB_transform_feedback3              (4.0)
    GL_ARB_vertex_attrib_64bit              (4.1)
    GL_EXT_abgr                            
    GL_EXT_blend_minmax                    
    GL_EXT_direct_state_access             
    GL_KHR_debug                            (4.3)
    GL_NVX_gpu_memory_info                 
    GL_NV_gpu_shader5                      
    WGL_EXT_swap_control                   

Unsupported OpenGL Extensions used by Houdini:
    GL_ATI_meminfo                         
 
OpenGL Limits:
   ELEMENTS_VERTICES                        1048576
   ELEMENTS_INDICES                         1048576
   VERTEX_UNITS                             32
   TESS_CONTROL_TEXTURE_IMAGE_UNITS         32
   TESS_EVALUATION_TEXTURE_IMAGE_UNITS      32
   GEOMETRY_UNITS                           32
   FRAGMENT_IMAGE_UNITS                     32
   COMBINED_UNITS                           192
   TEXTURE_SIZE                             32768
   3D_TEXTURE_SIZE                          16384
   CUBE_MAP_TEXTURE_SIZE                    32768
   RECTANGLE_TEXTURE_SIZE                   32768
   TEXTURE_ARRAY_LAYERS                     2048
   MAX_COLOR_TEXTURE_SAMPLES                32
   MAX_DEPTH_TEXTURE_SAMPLES                32
   FBO_ATTACHMENTS                          8
   DRAW_BUFFERS                             8
   VIEWPORT_DIMS                            32768x32768
   VERTEX_UNIFORMS                          4096
   FRAGMENT_UNIFORMS                        4096
   VERTEX_ATTRIBS                           16
   VERTEX_OUTPUT_COMPONENTS                 128
   MAX_CLIP_DISTANCES                       8
   PATCH_VERTICES                           32
   TESS_GEN_LEVEL                           64
   TESS_PATCH_COMPONENTS                    120
   TESS_CONTROL_OUTPUT_COMPONENTS           128
   TESS_CONTROL_TOTAL_OUTPUT_COMPONENTS     4216
   TESS_EVALUATION_OUTPUT_COMPONENTS        128
   GEOMETRY_UNIFORM_COMPONENTS              2048
   GEOMETRY_INPUT_COMPONENTS                128
   GEOMETRY_OUTPUT_COMPONENTS               128
   GEOMETRY_TOTAL_OUTPUT_COMPONENTS         1024
   GEOMETRY_OUTPUT_VERTICES                 1024
   UNIFORM_BLOCKS                           84
   UNIFORM_BLOCK_SIZE                       65536
   UNIFORM_BUFFER_BINDINGS                  84
   COMBINED_VERT_UNIFORM_BLOCKS             14
   COMBINED_VERT_UNIFORM_COMPS              233472
   TESS_CONTROL_UNIFORM_BLOCKS              14
   TESS_CONTROL_UNIFORM_COMPONENTS          2048
   TESS_EVALUATION_UNIFORM_BLOCKS           14
   TESS_EVALUATION_UNIFORM_COMPONENTS       2048
   COMBINED_GEO_UNIFORM_BLOCKS              14
   COMBINED_GEO_UNIFORM_COMPS               231424
   COMBINED_FRAG_UNIFORM_BLOCKS             14
   COMBINED_FRAG_UNIFORM_COMPS              233472
   MAX_FRAGMENT_STORAGE_BLOCKS              16
   MAX_STORAGE_BLOCK_BINDINGS               96
   TRANSFORM_FEEDBACK_INT_COMPS             128
   TRANSFORM_FEEDBACK_SEP_COMPS             4
   TRANSFORM_FEEDBACK_SEP_ATTRIBS           4
   LINE_WIDTH_RANGE                         0.5 - 10
   LINE_WIDTH_GRANULARITY                   0.125
   POINT_SIZE_RANGE                         1 - 189.875
   POINT_SIZE_GRANULARITY                   0.125

OpenCL Platform           NVIDIA CUDA
Platform Vendor           NVIDIA Corporation
Platform Version          OpenCL 1.2 CUDA 11.1.114
OpenCL Device             GeForce GTX 1080 Ti
OpenCL Type               GPU
Device Version            OpenCL 1.2 CUDA
Frequency                 1657 MHz
Compute Units             28
Device Address Bits       64
Global Memory             11264 MB
Max Allocation            2816 MB
Global Cache              1344 KB
Max Constant Args         9
Max Constant Size         64 KB
Local Mem Size            48 KB
2D Image Support          16384x32768
3D Image Support          16384x16384x16384
Max On Device Queues      4
Pref. Device Queue Size   256 KB
Max Device Queue Size     256 KB

OpenCL Platform Extensions:
   cl_khr_global_int32_base_atomics
   cl_khr_global_int32_extended_atomics
   cl_khr_local_int32_base_atomics
   cl_khr_local_int32_extended_atomics
   cl_khr_fp64
   cl_khr_byte_addressable_store
   cl_khr_icd
   cl_khr_gl_sharing
   cl_nv_compiler_options
   cl_nv_device_attribute_query
   cl_nv_pragma_unroll
   cl_nv_d3d10_sharing
   cl_khr_d3d10_sharing
   cl_nv_d3d11_sharing
   cl_nv_copy_opts
   cl_nv_create_buffer
   cl_khr_int64_base_atomics
   cl_khr_int64_extended_atomics
   cl_khr_device_uuid

OpenCL Device Extensions:
   cl_khr_global_int32_base_atomics
   cl_khr_global_int32_extended_atomics
   cl_khr_local_int32_base_atomics
   cl_khr_local_int32_extended_atomics
   cl_khr_fp64
   cl_khr_byte_addressable_store
   cl_khr_icd
   cl_khr_gl_sharing
   cl_nv_compiler_options
   cl_nv_device_attribute_query
   cl_nv_pragma_unroll
   cl_nv_d3d10_sharing
   cl_khr_d3d10_sharing
   cl_nv_d3d11_sharing
   cl_nv_copy_opts
   cl_nv_create_buffer
   cl_khr_int64_base_atomics
   cl_khr_int64_extended_atomics
   cl_khr_device_uuid

Environment:
    ACTIVETAKE                             Main
    ALLUSERSPROFILE                        C:\ProgramData
    APPDATA                                C:\Users\marsh\AppData\Roaming
    COMPUTERNAME                           DESKTOP-TUKVE8G
    ChocolateyInstall                      C:\ProgramData\chocolatey
    ChocolateyLastPathUpdate               132461297589753634
    ComSpec                                C:\Windows\system32\cmd.exe
    CommonProgramFiles(x86)                C:\Program Files (x86)\Common Files
    CommonProgramFiles                     C:\Program Files\Common Files
    CommonProgramW6432                     C:\Program Files\Common Files
    DELIGHT                                C:\Program Files\3Delight
    DRIVER                                 arnold1
    DRIVERPATH                             /out/arnold1
    DriverData                             C:\Windows\System32\Drivers\DriverData
    H                                      C:/PROGRA~1/SIDEEF~1/HOUDIN~1.408
    HB                                     C:/PROGRA~1/SIDEEF~1/HOUDIN~1.408/bin
    HDF5_DISABLE_VERSION_CHECK             1
    HFS                                    C:/PROGRA~1/SIDEEF~1/HOUDIN~1.408
    HH                                     C:/PROGRA~1/SIDEEF~1/HOUDIN~1.408/houdini
    HHC                                    C:/PROGRA~1/SIDEEF~1/HOUDIN~1.408/houdini/config
    HHP                                    C:/PROGRA~1/SIDEEF~1/HOUDIN~1.408/houdini/python2.7libs
    HIP                                    C:/Users/marsh/Desktop
    HIPFILE                                C:/Users/marsh/Desktop/arnold-render-test.hiplc
    HIPNAME                                arnold-render-test
    HOME                                   C:/Users/marsh/Documents
    HOMEDRIVE                              C:
    HOMEPATH                               \Users\marsh
    HOUDINI13_VOLUME_COMPATIBILITY         1
    HOUDINI_DESKTOP_DIR                    C:/Users/marsh/Desktop
    HOUDINI_OS                             Windows
    HOUDINI_PATH                           C:/Users/marsh/htoa/htoa-5.5.0.2_r1582e12_houdini-18.5.408/htoa-5.5.0.2_r1582e12_houdini-18.5.408;C:/Program Files/Side Effects Software/sidefx_packages/SideFXLabs18.5;C:/Program Files/vray_adv_50050_houdini18.5.408/vfh_home;C:/PROGRA~1/SIDEEF~1/HOUDIN~1.408/packages/viewer_handle_demo;C:/PROGRA~1/SIDEEF~1/HOUDIN~1.408/packages/kinefx;C:/Users/marsh/htoa/htoa-5.5.0.2_r1582e12_houdini-18.5.408/htoa-5.5.0.2_r1582e12_houdini-18.5.408;&
    HOUDINI_QT_PREFERRED_BINDING           PySide2
    HOUDINI_TEMP_DIR                       C:/Users/marsh/AppData/Local/Temp/houdini_temp
    HOUDINI_USER_PREF_DIR                  C:/Users/marsh/Documents/houdini18.5
    HOUDINI_VERSION                        18.5.408
    HT                                     C:/PROGRA~1/SIDEEF~1/HOUDIN~1.408/toolkit
    HTB                                    C:/PROGRA~1/SIDEEF~1/HOUDIN~1.408/toolkit/bin
    HTOA                                   C:/Users/marsh/htoa/htoa-5.5.0.2_r1582e12_houdini-18.5.408/htoa-5.5.0.2_r1582e12_houdini-18.5.408
    HTOA_PLUGIN_PATH                       C:/Users/marsh/htoa/htoa-5.5.0.2_r1582e12_houdini-18.5.408/htoa-5.5.0.2_r1582e12_houdini-18.5.408/arnold\plugins;C:/Users/marsh/htoa/htoa-5.5.0.2_r1582e12_houdini-18.5.408/htoa-5.5.0.2_r1582e12_houdini-18.5.408/arnold\plugins
    INSTALL_ROOT                           C:\Program Files\vray_adv_50050_houdini18.5.408
    INTEL_DEV_REDIST                       C:\Program Files (x86)\Common Files\Intel\Shared Libraries\
    IntelliJ IDEA                          C:\Program Files\JetBrains\IntelliJ IDEA 2020.3.1\bin;
    JOB                                    C:/Users/marsh
    LOCALAPPDATA                           C:\Users\marsh\AppData\Local
    LOGONSERVER                            \\DESKTOP-TUKVE8G
    MAYA_MODULE_PATH                       C:\Program Files\Common Files\Autodesk Shared\Modules\maya
    MAYA_RENDER_DESC_PATH                  C:\Program Files\3Delight\maya\render_desc
    NUMBER_OF_PROCESSORS                   20
    OCIO                                   C:\Users\marsh\Documents\OpenColorIO-Configs-master\OpenColorIO-Configs-master\aces_1.0.3\config.ocio
    OS                                     Windows_NT
    OneDrive                               C:\Users\marsh\OneDrive
    OneDriveConsumer                       C:\Users\marsh\OneDrive
    PATH                                   C:/Users/marsh/htoa/htoa-5.5.0.2_r1582e12_houdini-18.5.408/htoa-5.5.0.2_r1582e12_houdini-18.5.408\scripts\bin;C:\PROGRA~1\SIDEEF~1\HOUDIN~1.408\python27\lib\site-packages-forced\PySide2;C:/PROGRA~1/SIDEEF~1/HOUDIN~1.408/python27;C:/Program Files/Side Effects Software/sidefx_packages/SideFXLabs18.5/bin;C:/Program Files/vray_adv_50050_houdini18.5.408/vfh_home/bin;C:/PROGRA~1/SIDEEF~1/HOUDIN~1.408/bin;C:/Program Files/vray_adv_50050_houdini18.5.408/appsdk/bin;C:/Program Files/Side Effects Software/sidefx_packages/SideFXLabs18.5/bin;C:/Program Files/vray_adv_50050_houdini18.5.408/vfh_home/bin;C:/PROGRA~1/SIDEEF~1/HOUDIN~1.408/bin;C:/Program Files/vray_adv_50050_houdini18.5.408/appsdk/bin;C:/PROGRA~1/SIDEEF~1/HOUDIN~1.408/bin;C:/PROGRA~1/SIDEEF~1/HOUDIN~1.408/toolkit/bin;C:/Python38/Scripts/;C:/Python38/;C:/Program Files (x86)/Common Files/Intel/Shared Libraries/redist/intel64_win/compiler;C:/Windows/system32;C:/Windows;C:/Windows/System32/Wbem;C:/Windows/System32/WindowsPowerShell/v1.0/;C:/Windows/System32/OpenSSH/;C:/Program Files (x86)/NVIDIA Corporation/PhysX/Common;C:/Program Files/Git/cmd;C:/Program Files/nodejs/;C:/ProgramData/chocolatey/bin;;C:/Program Files/3Delight/bin;C:/Users/marsh/AppData/Local/Microsoft/WindowsApps;;C:/Program Files/JetBrains/IntelliJ IDEA 2020.3.1/bin;;C:/Users/marsh/AppData/Roaming/npm;C:/Users/marsh/htoa/htoa-5.5.0.2_r1582e12_houdini-18.5.408/htoa-5.5.0.2_r1582e12_houdini-18.5.408/scripts/bin;C:/Users/marsh/htoa/htoa-5.5.0.2_r1582e12_houdini-18.5.408/htoa-5.5.0.2_r1582e12_houdini-18.5.408/scripts/bin
    PATHEXT                                .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC;.PY;.PYW
    POSE                                   C:/Users/marsh/Documents/houdini18.5/poselib
    PROCESSOR_ARCHITECTURE                 AMD64
    PROCESSOR_IDENTIFIER                   Intel64 Family 6 Model 165 Stepping 5, GenuineIntel
    PROCESSOR_LEVEL                        6
    PROCESSOR_REVISION                     a505
    PSModulePath                           C:\Program Files\WindowsPowerShell\Modules;C:\Windows\system32\WindowsPowerShell\v1.0\Modules
    PUBLIC                                 C:\Users\Public
    PYTHONHOME                             C:/PROGRA~1/SIDEEF~1/HOUDIN~1.408/python27
    PYTHONPATH                             C:/Program Files/vray_adv_50050_houdini18.5.408/appsdk/python27;C:/Program Files/vray_adv_50050_houdini18.5.408/appsdk/python27
    ProgramData                            C:\ProgramData
    ProgramFiles(x86)                      C:\Program Files (x86)
    ProgramFiles                           C:\Program Files
    ProgramW6432                           C:\Program Files
    QT_D3DCREATE_MULTITHREADED             1
    QT_LOGGING_RULES                       qt.svg.warning=false
    QT_QPA_FONTDIR                         C:/PROGRA~1/SIDEEF~1/HOUDIN~1.408/houdini/fonts
    RFMTREE                                C:\Program Files\Pixar\RenderManForMaya-23.5\
    SESI_LMHOST                            DESKTOP-TUKVE8G
    SESSIONNAME                            Console
    SIDEFXLABS                             C:/Program Files/Side Effects Software/sidefx_packages/SideFXLabs18.5
    SystemDrive                            C:
    SystemRoot                             C:\Windows
    TEMP                                   C:/Users/marsh/AppData/Local/Temp/houdini_temp
    TMP                                    C:\Users\marsh\AppData\Local\Temp
    USER                                   marsh
    USERDOMAIN                             DESKTOP-TUKVE8G
    USERDOMAIN_ROAMINGPROFILE              DESKTOP-TUKVE8G
    USERNAME                               marsh
    USERPROFILE                            C:\Users\marsh
    VFH_HOME                               C:\Program Files\vray_adv_50050_houdini18.5.408/vfh_home
    VRAY_APPSDK                            C:\Program Files\vray_adv_50050_houdini18.5.408/appsdk
    VRAY_APPSDK_PYTHON_REFERENCE_ONLY      1
    VRAY_OSL_PATH                          C:\Program Files\vray_adv_50050_houdini18.5.408/appsdk/bin
    VRAY_UI_DS_PATH                        C:\Program Files\vray_adv_50050_houdini18.5.408/ui
    VRAY_VFB2_SKIP_QT_RUNTIME_CHECK        1
    _HIP_SAVEPLATFORM                      windows-x86_64-cl19.16
    _HIP_SAVETIME                          Mon Jan 11 20:03:34 2021
    _HIP_SAVEVERSION                       18.5.408
    _HIP_SHELFTOOLCOUNT                    6
    g_additionalModulePath                 C:\Program Files\3Delight\cinema4d
    windir                                 C:\Windows

Stephen.Blair · ‎01-12-2021

@Marshall Moore
Hi

How do you open Houdini? Are you double-clicking a .hip file?

Use the Houdini Command Line Tools to start Houdini...does that work?

// Stephen Blair
// Arnold Renderer Support

marshallgmoore93D3R · ‎01-12-2021

That's it! I've had a test file on my desktop that I've been tinkering with. I've been clicking on that .hip file. I started a new test file today with my stripped-back houdini.env file and am doing simple renders without issue. Clicking on the new file to open Houdini is now working in this case. It's odd to me that a problem like this would be tied to a file. Do you know of a way to 'fix' a file that's causing these problems?

Again, thanks for your help. I'm thrilled to have this resolved and be able to use Arnold.

Stephen.Blair · ‎01-18-2021

@Marshall Moore On Windows, when you double-click a hip file, it opens with hview, and that sets the environment differently for some reason. So it's not the file that is the problem, it's how Houdini starts.

// Stephen Blair
// Arnold Renderer Support

caarraca · ‎06-15-2022

I have issues when I render, I can not render a simple scene

I have these error:

Error

Failed to save output to file "Traceback (most recent call last):
File "C:/Users/caarr/htoa/htoa-6.1.2.1_rb46a0de_houdini-18.5.759/htoa-6.1.2.1_rb46a0de_houdini-18.5.759/scripts/python\htoa_pygeo.py", line 14, in swig_import_helper
return importlib.import_module(mname)
File "C:\PROGRA~1\SIDEEF~1\HOUDIN~1.759\python37\lib\importlib\__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
File "<frozen importlib._bootstrap>", line 983, in _find_and_load
File "<frozen importlib._bootstrap>", line 965, in _find_and_load_unlocked
ModuleNotFoundError: No module named '_htoa_pygeo'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "C:/Users/caarr/htoa/htoa-6.1.2.1_rb46a0de_houdini-18.5.759/htoa-6.1.2.1_rb46a0de_houdini-18.5.759/soho/arnold.py", line 13, in <module>
from htoa.session import HaSession
File "C:/Users/caarr/htoa/htoa-6.1.2.1_rb46a0de_houdini-18.5.759/htoa-6.1.2.1_rb46a0de_houdini-18.5.759/scripts/python\htoa\session.py", line 29, in <module>
import htoa_pygeo
File "C:/Users/caarr/htoa/htoa-6.1.2.1_rb46a0de_houdini-18.5.759/htoa-6.1.2.1_rb46a0de_houdini-18.5.759/scripts/python\htoa_pygeo.py", line 17, in <module>
_htoa_pygeo = swig_import_helper()
File "C:/Users/caarr/htoa/htoa-6.1.2.1_rb46a0de_houdini-18.5.759/htoa-6.1.2.1_rb46a0de_houdini-18.5.759/scripts/python\htoa_pygeo.py", line 16, in swig_import_helper
return importlib.import_module('_htoa_pygeo')
File "C:\PROGRA~1\SIDEEF~1\HOUDIN~1.759\python37\lib\importlib\__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
ModuleNotFoundError: No module named '_htoa_pygeo'
".

utkarsh333 · ‎11-03-2022

I am also having the same issue,, did you fid why this is happening?

caarraca · ‎11-04-2022

hello, on the same forum go to page 5. There is a discussion and my solution to the problem

posted ‎on 06-15-2022 01:17 PM. Python 3 versions of both HtoA and Houdini OR Python 2 versions

of both HTOA and Houdini . You cannot have a mix, that won't work. In my case my htoa version was

python 2.7 and my houdini was python 3.7

C:/Users/caarr/htoa/htoa-6.1.2.1_rb46a0de_houdini-18.5.759/htoa-6.1.2.1_rb46a0de_houdini-18.5.759

File "C:\PROGRA~1\SIDEEF~1\HOUDIN~1.759\python37

utkarsh333 · ‎11-04-2022

Both python versions are same,, still getting same error😒

"Failed to save output to file "Traceback (most recent call last):" when clicking "Render to Disk"

"Failed to save output to file "Traceback (most recent call last):" when clicking "Render to Disk"

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