First, Thanks for ur reply.
That problem has been solved,
but I have new problem.
Traceback (most recent call last):
File “/Users/josujin/AS-GCN/main.py”, line 14, in 
processors[‘demo’] = import_class(‘processor.demo.Demo’)
File “/Users/josujin/AS-GCN/torchlight/io.py”, line 186, in import_class
__ import__(mod_str)
ModuleNotFoundError: No module named 'processor.demo’
So, I did commented out this line,
processors[‘demo’] = import_class(‘processor.demo.Demo’)
Can I do this?