About the query embedder config

Thanks for your work! It's very helpful for the community. 
However, when reproducing your "InBatch" experiment, I kept running into the error: local variable 'query_embedder_config' referenced before assignment (I didn't set raw retrieval to be true). Even if I added the path in the bash file, still I can't solve some of the args issues (gpu ids). Can you kindly help me solve this problem?