bskochii | SideFX

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Supercharged H20 extension (TouchDesigner Style) March 19, 2026, 2:14 p.m.

Hi Yunus, I get these errors when I start Houdini. One to the right happens on startup, the left one happens when I try to toggle overlay network editor. Maybe you could suggest what's wrong on my side? I tried 21.0.596 and 631, clean wiped the houdini21.0 folder, what might be causing this, thanks!

Traceback (most recent call last):
  File "C:\PROGRA~1/SIDEEF~1/HOUDIN~1.631/houdini/python3.11libs\hdefereval.py", line 154, in _processDeferred
    result = code(*args, **kwargs)
             ^^^^^^^^^^^^^^^^^^^^^
  File "C:/Users/user/Documents/houdini21.0/animatrix/overlay network editor/python3.11libs/pythonrc.py", line 71, in initializeOverlayNetworkEditor
    hou.session.viewportOutlineWidget = ViewportOutlineWidget()
                                        ^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users/user/Documents/houdini21.0/animatrix/overlay network editor/python3.11libs\utility_overlay_network_editor.py", line 54, in __init__
    self.update()
  File "C:\Users/user/Documents/houdini21.0/animatrix/overlay network editor/python3.11libs\utility_overlay_network_editor.py", line 63, in update
    p = window.mapToGlobal(QtCore.QPoint(0, 0))
        ^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'mapToGlobal'

Traceback (most recent call last):
  File "toggleOverlayNetworkEditor", line 3, in <module>
  File "C:\Users/user/Documents/houdini21.0/animatrix/overlay network editor/python3.11libs\utility_overlay_network_editor.py", line 288, in toggleOverlayNetworkEditor
    if hou.session.viewportOutlineWidget.isVisible():
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: module 'hou.session' has no attribute 'viewportOutlineWidget'

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Supercharged H20 extension (TouchDesigner Style) March 19, 2026, 2:14 p.m.

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