Issue loading custom tokenizer for fine-tuning gpt2
I'm trying to fine-tune gpt2 with a custom tokenizer. It was working fine just over 10 days ago, with  --tokenizer_name=/path to vocab and merges folder/  and now it cannot load, asking to check if it's a correct model identifier or contains a config.json file. As if instead of a tokenizer it is now trying to load a model? It also asked for an extra model identifier in the config file of my model, which before was not required.

I suppose there was a library update? What would be the workaround? Thanks in advance. 

Can you post a sample code?<|||||>This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.
