Mixamo add-on for Blender 3.2.1 throws error when creating control rig (error log in post)

[JJLuiten]

I just downloaded the Mixamo add-on for Blender and when I try to generate a control rig it throws an error. All settings are default and I use the Y-bot model downloaded straight from Mixamo. Does anyone know why this is happening?

Python: Traceback (most recent call last):
File "C:\Users\[REDACTED]\AppData\Roaming\Blender Foundation\Blender\3.2\scripts\addons\mixamo_rig\mixamo_rig.py", line 177, in execute
_make_rig(self)
File "C:\Users\[REDACTED]\AppData\Roaming\Blender Foundation\Blender\3.2\scripts\addons\mixamo_rig\mixamo_rig.py", line 2006, in _make_rig
add_leg("Left")
File "C:\Users\[REDACTED]\AppData\Roaming\Blender Foundation\Blender\3.2\scripts\addons\mixamo_rig\mixamo_rig.py", line 1177, in add_leg
cns = c_foot_ik_pb.constraints.get(cns_name)
AttributeError: 'NoneType' object has no attribute 'constraints'

[olasile5F9A · Accepted solution]

Hi JJLuiten,

This character (Ybot) had issues with its mixamorig that hasn't been updated. Please try the Blender plugin with a different Mixamo model or your own character.

[JJLuiten]

That's exactly it. Thank you!

[Ussnorway]

i see a few issues but first, is the arms like that in the model before trying to run the control rig?

please include a image of the model in T pose as Mixamo gave it to you... then try running the script again i.e, with the Tpose as a starting mark

[JJLuiten]

Thank you for taking the time to answer this. The issue has been sort of resolved. It was simply a problem with the Ybot rig as mentioned in the accepted answer.

[Ussnorway]

yes they made a mistake but its easy to fix by just stripping out the bones sending the model back up... assuming you still want it