The assertion on the generate_input.py file was triggered

Hi, I have extracted the files according to the directory you provided, but when I try to run the train.py file, an exception still occurs: “assert len(mg_mapping) == len(metagraph.nodes), set(metagraph_nodes).difference(set(list(mg_mapping.keys()))”; this assertion is defined on line 103 of the generate_input.py file.