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Question

I’m facing issues while running an OCR process using Nougat with two different errors for two different users. The errors are related to importing cached_property and an unexpected keyword argument cache_position. Below are the full error messages for both cases:

Error 1: ImportError for cached_property

ImportError: cannot import name 'cached_property' from 'nougat.utils' (/lfs/skampere1/0/emilyhyf/miniconda/lib/python3.12/site-packages/nougat/utils/__init__.py)
OCRing with base model failed on /lfs/skampere1/0/emilyhyf/massive-evaporation-4-math/data/debug_pdfs/dummy_folder1/The_IMO_Compendium.pdf... trying small model
Traceback (most recent call last):
  File "/lfs/skampere1/0/emilyhyf/miniconda/bin/nougat", line 5, in <module>
    from predict import main
  File "/lfs/skampere1/0/emilyhyf/miniconda/lib/python3.12/site-packages/predict.py", line 18, in <module>
    from nougat import NougatModel
  File "/lfs/skampere1/0/emilyhyf/miniconda/lib/python3.12/site-packages/nougat/__init__.py", line 1, in <module>
    from nougat.app import Nougat
  File "/lfs/skampere1/0/emilyhyf/miniconda/lib/python3.12/site-packages/nougat/app.py", line 5, in <module>
    from nougat.asgi import serve
  File "/lfs/skampere1/0/emilyhyf/miniconda/lib/python3.12/site-packages/nougat/asgi.py", line 6, in <module>
    from nougat.context.request import Request
  File "/lfs/skampere1/0/emilyhyf/miniconda/lib/python3.12/site-packages/nougat/context/__init__.py", line 1, in <module>
    from nougat.context.request import Request
  File "/lfs/skampere1/0/emilyhyf/miniconda/lib/python3.12/site-packages/nougat/context/request.py", line 8, in <module>
    from nougat.utils import cached_property, File
ImportError: cannot import name 'cached_property' from 'nougat.utils' (/lfs/skampere1/0/emilyhyf/miniconda/lib/python3.12/site-packages/nougat/utils/__init__.py)
OCRing with small model failed on /lfs/skampere1/0/emilyhyf/massive-evaporation-4-math/data/debug_pdfs/dummy_folder1/The_IMO_Compendium.pdf
The following files failed OCRing and need manual review:
/lfs/skampere1/0/emilyhyf/massive-evaporation-4-math/data/debug_pdfs/putnam_and_beyond.pdf
/lfs/skampere1/0/emilyhyf/massive-evaporation-4-math/data/debug_pdfs/dummy_folder1/The_IMO_Compendium.pdf
Time taken: 8.497612476348877 seconds, 0.1416268746058146 minutes, 0.00236044791009691 hours

Error 2: TypeError for cache_position in BARTDecoder

TypeError: BARTDecoder.prepare_inputs_for_inference() got an unexpected keyword argument 'cache_position'
-> Cannot close object, library is destroyed. This may cause a memory leak!
-> Cannot close object, library is destroyed. This may cause a memory leak!
-> Cannot close object, library is destroyed. This may cause a memory leak!
OCRing with base model failed on /lfs/skampere1/0/naveenkc/contest_scraper/test_nougat/731991.pdf... trying small model
/lfs/skampere1/0/naveenkc/miniconda/lib/python3.12/site-packages/torch/functional.py:512: UserWarning: torch.meshgrid: in an upcoming release, it will be required to pass the indexing argument. (Triggered internally at ../aten/src/ATen/native/TensorShape.cpp:3587.)
  return _VF.meshgrid(tensors, **kwargs) # type: ignore[attr-defined]
  0%|                                                 | 0/288 [00:24<?, ?it/s]
Traceback (most recent call last):
  File "/lfs/skampere1/0/naveenkc/miniconda/bin/nougat", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/lfs/skampere1/0/naveenkc/miniconda/lib/python3.12/site-packages/predict.py", line 167, in main
    model_output = model.inference(
                   ^^^^^^^^^^^^^^^^
  File "/lfs/skampere1/0/naveenkc/miniconda/lib/python3.12/site-packages/nougat/model.py", line 592, in inference
    decoder_output = self.decoder.model.generate(
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/lfs/skampere1/0/naveenkc/miniconda/lib/python3.12/site-packages/torch/utils/_contextlib.py", line 115, in decorate_context
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/lfs/skampere1/0/naveenkc/miniconda/lib/python3.12/site-packages/transformers/generation/utils.py", line 1758, in generate
    result = self._sample(
             ^^^^^^^^^^^^^
  File "/lfs/skampere1/0/naveenkc/miniconda/lib/python3.12/site-packages/transformers/generation/utils.py", line 2394, in _sample
    model_inputs = self.prepare_inputs_for_generation(input_ids, **model_kwargs)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: BARTDecoder.prepare_inputs_for_inference() got an unexpected keyword argument 'cache_position'
-> Cannot close object, library is destroyed. This may cause a memory leak!
-> Cannot close object, library is destroyed. This may cause a memory leak!
-> Cannot close object, library is destroyed. This may cause a memory leak!
-> Cannot close object, library is destroyed. This may cause a memory leak!
-> Cannot close object, library is destroyed. This may cause a memory leak!
OCRing with small model failed on /lfs/skampere1/0/naveenkc/contest_scraper/test_nougat/731991.pdf
The following files failed OCRing and need manual review:
/lfs/skampere1/0/naveenkc/contest_scraper/test_nougat/731991.pdf
Time taken: 65.70022702217102 seconds, 1.0950037837028503 minutes, 0.018250063061714172 hours

Environment:

Python 3.12
Nougat
Torch
Transformers

Questions:

ImportError: How can I resolve the ImportError: cannot import name 'cached_property' from 'nougat.utils'? What could be causing this issue, and is there an alternative approach to import cached_property?
TypeError: How can I address the TypeError: BARTDecoder.prepare_inputs_for_inference() got an unexpected keyword argument 'cache_position'? Is this due to a version mismatch between transformers and torch? How can I ensure compatibility?

Any guidance on these issues would be greatly appreciated! Thank you in advance!