AttributeError: 'RobertaConfig' object has no attribute 'task2labels'

[rudra0713]

I am executing the following command with the necessary parameters:
python3.8 src/stancedetection/models/trainer.py
For now, I am just using 3 datasets with a very small number of synthetic examples, just to make sure that the code is working.
However, I am getting the following error:

File "src/stancedetection/models/trainer.py", line 903, in <module>
    main()
  File "src/stancedetection/models/trainer.py", line 822, in main
    model = load_model_from_pretrained(
  File "src/stancedetection/models/trainer.py", line 291, in load_model_from_pretrained
    model = model_cls.from_pretrained(model_name_or_path, **from_pretrained_kwargs)
  File "venv/lib/python3.8/site-packages/transformers/modeling_utils.py", line 947, in from_pretrained
    model = cls(config, *model_args, **model_kwargs)
  File "/scratch/rrs99/mole-stance/src/stancedetection/models/nn.py", line 147, in __init__
    task2labels=config.task2labels,
AttributeError: 'RobertaConfig' object has no attribute 'task2labels'