Character Setup fails with "Moveprim" error

Omniverse Apps Audio2Face
1

Hey, I am exporting the face from Blender with the USD exporter from the USD branch and then importing it into A2F. During character setup I get an error and can’t continue.

Here are my steps:

  • Drag the usd file into the Stage (Cliff_face_from_blender.usd (8.1 MB))
  • Select the face and execute “Mesh → Mesh Separate”
  • Select the new face
  • Set the new face as the Skin in Chatacter Setup
  • Press “Setup Character”
    → Error

Here is the error:

2023-09-15 08:46:16  [Error] [omni.kit.commands.command] Failed to execute a command: MovePrim.
2023-09-15 08:46:16  [Error] [omni.kit.commands.command]   File "c:/users/philipp/appdata/local/ov/pkg/audio2face-2023.1.1/exts/omni.kit.charTransfer/omni/kit/charTransfer/scripts/prompt.py", line 177, in _on_ok_button_fn
2023-09-15 08:46:16  [Error] [omni.kit.commands.command]     self._ok_button_fn()
2023-09-15 08:46:16  [Error] [omni.kit.commands.command]   File "c:/users/philipp/appdata/local/ov/pkg/audio2face-2023.1.1/exts/omni.kit.charTransfer/omni/kit/charTransfer/scripts/ui.py", line 3246, in setup_character
2023-09-15 08:46:16  [Error] [omni.kit.commands.command]     skin_grp = create_xform_group(
2023-09-15 08:46:16  [Error] [omni.kit.commands.command]   File "c:/users/philipp/appdata/local/ov/pkg/audio2face-2023.1.1/exts/omni.kit.charTransfer/omni/kit/charTransfer/scripts/tools.py", line 1225, in create_xform_group
2023-09-15 08:46:16  [Error] [omni.kit.commands.command]     omni.kit.commands.execute("MovePrim", path_from=stamp_prim.GetPath(), path_to=dest_path)
2023-09-15 08:46:16  [Error] [omni.kit.commands.command]   File "c:/users/philipp/appdata/local/ov/pkg/audio2face-2023.1.1/kit/exts/omni.kit.commands/omni/kit/commands/command.py", line 463, in execute
2023-09-15 08:46:16  [Error] [omni.kit.commands.command]     result = omni.kit.undo.execute(command, name, kwargs)
2023-09-15 08:46:16  [Error] [omni.kit.commands.command] [...skipped...]
2023-09-15 08:46:16  [Error] [omni.kit.commands.command]   File "c:/users/philipp/appdata/local/ov/pkg/audio2face-2023.1.1/kit/exts/omni.kit.commands/omni/kit/undo/undo.py", line 77, in execute
2023-09-15 08:46:16  [Error] [omni.kit.commands.command]     result = _execute(command, name, level, history_key)
2023-09-15 08:46:16  [Error] [omni.kit.commands.command]   File "c:/users/philipp/appdata/local/ov/pkg/audio2face-2023.1.1/kit/exts/omni.kit.commands/omni/kit/undo/undo.py", line 458, in _execute
2023-09-15 08:46:16  [Error] [omni.kit.commands.command]     raise error
2023-09-15 08:46:16  [Error] [omni.kit.commands.command]   File "c:/users/philipp/appdata/local/ov/pkg/audio2face-2023.1.1/kit/exts/omni.kit.commands/omni/kit/undo/undo.py", line 420, in _execute
2023-09-15 08:46:16  [Error] [omni.kit.commands.command]     call_callbacks(command, name, kwargs, omni.kit.commands.POST_DO_CALLBACK)
2023-09-15 08:46:16  [Error] [omni.kit.commands.command]   File "c:/users/philipp/appdata/local/ov/pkg/audio2face-2023.1.1/kit/exts/omni.kit.commands/omni/kit/commands/command.py", line 440, in _call_callbacks
2023-09-15 08:46:16  [Error] [omni.kit.commands.command]     cb(info)
2023-09-15 08:46:16  [Error] [omni.kit.commands.command]   File "c:/users/philipp/appdata/local/ov/pkg/audio2face-2023.1.1/kit/exts/omni.kit.usd.layers/omni/kit/usd/layers/impl/live_syncing.py", line 339, in __on_post_move_prim
2023-09-15 08:46:16  [Error] [omni.kit.commands.command]     for live_session in self._saved_prim_sessions:
2023-09-15 08:46:16  [Error] [omni.kit.commands.command] 
2023-09-15 08:46:16  [Error] [omni.kit.commands.command]  <class 'TypeError'> 'NoneType' object is not iterable
2023-09-15 08:46:16  [Error] [omni.ui.python] RuntimeError: Accessed invalid null prim
2023-09-15 08:46:16  [Error] [omni.ui.python] 
2023-09-15 08:46:16  [Error] [omni.ui.python] At:
2023-09-15 08:46:16  [Error] [omni.ui.python]   c:/users/philipp/appdata/local/ov/pkg/audio2face-2023.1.1/exts/omni.kit.charTransfer/omni/kit/charTransfer/scripts/tools.py(1229): create_xform_group
2023-09-15 08:46:16  [Error] [omni.ui.python]   c:/users/philipp/appdata/local/ov/pkg/audio2face-2023.1.1/exts/omni.kit.charTransfer/omni/kit/charTransfer/scripts/ui.py(3246): setup_character
2023-09-15 08:46:16  [Error] [omni.ui.python]   c:/users/philipp/appdata/local/ov/pkg/audio2face-2023.1.1/exts/omni.kit.charTransfer/omni/kit/charTransfer/scripts/prompt.py(177): _on_ok_button_fn
2023-09-15 08:46:16  [Error] [omni.ui.python]

Let me know if you need the full log.
Thank you!

2

@philipp35 i am just another user passing by. i can’t seem to repro the error you were getting on my end using 2023.1.1. there were several texture/UDIM related issues, but nothing to do with prim translation.

btw, I had to adjust the character orientation as well (setting shown in the screenshot below), but don’t think it’s related.

image
image1765×717 174 KB

3

I can seems to repro this either.
@philipp35, if the issue persist, can you record a video of your steps. as maybe I’m missing some steps to be able to repro the issue.