assert step < max_len, f"{step} < {max_len}" AssertionError: 60 < 60

[sevensix617]

When I was training a summarization model under fairseq, I encountered the following error in the validation step. How can I solve this problem.

-- Process 1 terminated with the following error:
Traceback (most recent call last):
File "/home/deep/.conda/envs/torch3.7/lib/python3.7/site-packages/torch/multiprocessing/spawn.py", line 69, in _wrap
fn(i, *args)
File "/home/deep/.conda/envs/torch3.7/lib/python3.7/site-packages/fairseq/distributed/utils.py", line 328, in distributed_main
main(cfg, **kwargs)
File "/home/deep/PRGEN/train.py", line 181, in main
valid_losses, should_stop = train(cfg, trainer, task, epoch_itr)
File "/home/deep/.conda/envs/torch3.7/lib/python3.7/contextlib.py", line 74, in inner
return func(*args, **kwds)
File "/home/deep/PRGEN/train.py", line 314, in train
cfg, trainer, task, epoch_itr, valid_subsets, end_of_epoch,
File "/home/deep/PRGEN/train.py", line 404, in validate_and_save
valid_losses = validate(cfg, trainer, task, epoch_itr, valid_subsets)
File "/home/deep/PRGEN/train.py", line 476, in validate
trainer.valid_step(sample)
File "/home/deep/.conda/envs/torch3.7/lib/python3.7/contextlib.py", line 74, in inner
return func(*args, **kwds)
File "/home/deep/PRGEN/trainer.py", line 1037, in valid_step
sample, self.model, self.criterion, **extra_kwargs
File "/home/deep/PRGEN/src/task/faithful_summary_task.py", line 282, in valid_step
metrics = self._inference_with_bleu(self.sequence_generator, sample, model)
File "/home/deep/PRGEN/src/task/faithful_summary_task.py", line 332, in _inference_with_bleu
gen_out = self.inference_step(generator, [model], sample, prefix_tokens=None)
File "/home/deep/.conda/envs/torch3.7/lib/python3.7/site-packages/fairseq/tasks/fairseq_task.py", line 541, in inference_step
models, sample, prefix_tokens=prefix_tokens, constraints=constraints
File "/home/deep/.conda/envs/torch3.7/lib/python3.7/site-packages/torch/autograd/grad_mode.py", line 27, in decorate_context
return func(*args, **kwargs)
File "/home/deep/.conda/envs/torch3.7/lib/python3.7/site-packages/fairseq/sequence_generator.py", line 204, in generate
return self._generate(sample, **kwargs)
File "/home/deep/.conda/envs/torch3.7/lib/python3.7/site-packages/fairseq/sequence_generator.py", line 470, in _generate
assert step < max_len, f"{step} < {max_len}"
AssertionError: 60 < 60

[usefulhyun]

I have the same issue. Did you solve the problem?