Arnold Lights not working

[Anonymous]

Hi, I am trying to place arnold mesh lights in my Maya scene on my personal laptop, but when I try they simply don't appear at all and I get this error:

# Warning: Unrecognized node type 'aiMeshLight'; preserving node information during this session. #

# Error: TypeError: file C:\solidangle\mtoadeploy\2018\scripts\mtoa\utils.py line 512: 'NoneType' object has no attribute '__getitem__' #

I've tested different scenes and different kinds of arnold lights and I still get this same type of error. I've used arnold in Maya on other computers without issue, so I'm not sure what the problem could be. Any help is appreciated.

[Stephen.Blair · Accepted solution]

Mtoa isn't loaded. Did you load the plugin? Check the script editor for errors.

[Anonymous]

that was my issue, didn't realize you had to load it manually the first time. Thanks!

[Anonymous]

Windows > settings/preferences > plugin manager > put a mark on mtoa.bundle