Label Smoothing in NLLB gives ValueError: You have to specify either decoder_input_ids or decoder_inputs_embeds

Hi. I am fine-tuning a NLLB model with the Trainer API. When I am am specifying the parameter label_smoothing_factor to some value in hf.json, I get an error like this. If the error shown is correct, how do I specify decoder_input_ids or decoder_inputs_embeds?

  File "run_translation.py", line 849, in <module>
    main()
  File "run_translation.py", line 753, in main
    train_result = trainer.train(resume_from_checkpoint=checkpoint)
  File "/root/.clearml/venvs-builds/3.8/task_repository/hf-translation.git/.venv/lib/python3.8/site-packages/transformers/trainer.py", line 1498, in train
    return inner_training_loop(
  File "/root/.clearml/venvs-builds/3.8/task_repository/hf-translation.git/.venv/lib/python3.8/site-packages/transformers/trainer.py", line 1740, in _inner_training_loop
    tr_loss_step = self.training_step(model, inputs)
  File "/root/.clearml/venvs-builds/3.8/task_repository/hf-translation.git/.venv/lib/python3.8/site-packages/transformers/trainer.py", line 2470, in training_step
    loss = self.compute_loss(model, inputs)
  File "/root/.clearml/venvs-builds/3.8/task_repository/hf-translation.git/.venv/lib/python3.8/site-packages/transformers/trainer.py", line 2502, in compute_loss
    outputs = model(**inputs)
  File "/root/.clearml/venvs-builds/3.8/task_repository/hf-translation.git/.venv/lib/python3.8/site-packages/torch/nn/modules/module.py", line 1102, in _call_impl
    return forward_call(*input, **kwargs)
  File "/root/.clearml/venvs-builds/3.8/task_repository/hf-translation.git/.venv/lib/python3.8/site-packages/transformers/models/m2m_100/modeling_m2m_100.py", line 1315, in forward
    outputs = self.model(
  File "/root/.clearml/venvs-builds/3.8/task_repository/hf-translation.git/.venv/lib/python3.8/site-packages/torch/nn/modules/module.py", line 1102, in _call_impl
    return forward_call(*input, **kwargs)
  File "/root/.clearml/venvs-builds/3.8/task_repository/hf-translation.git/.venv/lib/python3.8/site-packages/transformers/models/m2m_100/modeling_m2m_100.py", line 1206, in forward
    decoder_outputs = self.decoder(
  File "/root/.clearml/venvs-builds/3.8/task_repository/hf-translation.git/.venv/lib/python3.8/site-packages/torch/nn/modules/module.py", line 1102, in _call_impl
    return forward_call(*input, **kwargs)
  File "/root/.clearml/venvs-builds/3.8/task_repository/hf-translation.git/.venv/lib/python3.8/site-packages/transformers/models/m2m_100/modeling_m2m_100.py", line 985, in forward
    raise ValueError("You have to specify either decoder_input_ids or decoder_inputs_embeds")
ValueError: You have to specify either decoder_input_ids or decoder_inputs_embeds