runtime error

Exit code: 1. Reason: return future.result() File "/usr/local/lib/python3.9/site-packages/uvicorn/server.py", line 76, in serve config.load() File "/usr/local/lib/python3.9/site-packages/uvicorn/config.py", line 448, in load self.loaded_app = import_from_string(self.app) File "/usr/local/lib/python3.9/site-packages/uvicorn/importer.py", line 21, in import_from_string module = importlib.import_module(module_str) File "/usr/local/lib/python3.9/importlib/__init__.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 1030, in _gcd_import File "<frozen importlib._bootstrap>", line 1007, in _find_and_load File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 680, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 850, in exec_module File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed File "/app/./app.py", line 6, in <module> from bpe_tokenizer import BPETokenizer, create_base_vocab File "/app/./bpe_tokenizer.py", line 4, in <module> from datasets import load_dataset File "/usr/local/lib/python3.9/site-packages/datasets/__init__.py", line 43, in <module> from .arrow_dataset import Dataset File "/usr/local/lib/python3.9/site-packages/datasets/arrow_dataset.py", line 66, in <module> from .arrow_writer import ArrowWriter, OptimizedTypedSequence File "/usr/local/lib/python3.9/site-packages/datasets/arrow_writer.py", line 27, in <module> from .features import Features, Image, Value File "/usr/local/lib/python3.9/site-packages/datasets/features/__init__.py", line 18, in <module> from .features import Array2D, Array3D, Array4D, Array5D, ClassLabel, Features, Sequence, Value File "/usr/local/lib/python3.9/site-packages/datasets/features/features.py", line 629, in <module> class _ArrayXDExtensionType(pa.PyExtensionType): AttributeError: module 'pyarrow' has no attribute 'PyExtensionType'

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