AttributeError in CGFP


I am trying to run through the CGFP workflow. I have generated a SSN and am using Cytoscape 3.2.1 to generate node and edge tables for the SSN. When running I encounter the following error:

Traceback (most recent call last):
File “./cgfp/scripts/”, line 195, in
main( )
File “./cgfp/scripts/”, line 176, in main
node_a.attach( node_b )
AttributeError: ‘NoneType’ object has no attribute ‘attach’

I am wondering if this is an error coming from the tables I generated? Any help troubleshooting would be appreciated.

My guess is that there is something off about the SSN file. I would start by comparing it to the demo file to see if you spot anything obviously different. If not, feel free to send it along and I will take a look.