question

Phlipp Hafellner avatar image
Phlipp Hafellner asked ·

Htoa Traceback error

Hi

when I create a geo node I get this error

Traceback (most recent call last):
  File "C:/Users/Phil/htoa/htoa-5.3.0_r233605f_houdini-18.0.499/htoa-5.3.0_r233605f_houdini-18.0.499/scripts/obj/geo.py", line 3, in <module>
    htoa.properties.initArnoldProperties(kwargs['node'])
  File "C:/Users/Phil/htoa/htoa-5.3.0_r233605f_houdini-18.0.499/htoa-5.3.0_r233605f_houdini-18.0.499/scripts/python\htoa\properties.py", line 167, in initArnoldProperties
    addArnoldProperties(node)
  File "C:/Users/Phil/htoa/htoa-5.3.0_r233605f_houdini-18.0.499/htoa-5.3.0_r233605f_houdini-18.0.499/scripts/python\htoa\properties.py", line 111, in addArnoldProperties
    node.parm('ar_matte').setExpression('ch("vm_matte")')
AttributeError: 'NoneType' object has no attribute 'setExpression'

and the Arnold tab of the geo stays empty, adding the attributes manually doesn't work

in a different post, there was the suggestion to disable sidefx labs but that's no option for me

thank you for any help!

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Stephen Blair avatar image
Stephen Blair answered ·

This kind of thing is almost always an environment problem.

So, check

  • houdini.env, or if you use packages, the json file
  • Help > About Houdini > Show Details

Remove other stuff and make sure HtoA works. Then add back the other stuff.

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