[COLAB] RuntimeError: Failed to import transformers.models.auto because of the following error (look up to see its traceback): module 'sentencepiece._sentencepiece' has no attribute 'delete_ImmutableSentencePieceText_ImmutableSentencePiece'
Author: HaikenEdgeCreated Jul 16, 2026Updated Jul 17, 2026
Got the following error today while running with
!pip uninstall -y xformers !pip install -U xformers !pip install "lightning_utilities==0.8.0" "lightning_fabric==1.9.5"
in a new cell after the Requirements cell:
Traceback (most recent call last):
File "/usr/local/lib/python3.12/dist-packages/transformers/utils/import_utils.py", line 1146, in _get_module
return importlib.import_module("." + module_name, self.__name__)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.12/importlib/__init__.py", line 90, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "<frozen importlib._bootstrap>", line 1387, in _gcd_import
File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
File "<frozen importlib._bootstrap>", line 1310, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
File "<frozen importlib._bootstrap>", line 1387, in _gcd_import
File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
File "<frozen importlib._bootstrap>", line 1331, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 935, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 999, in exec_module
File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
File "/usr/local/lib/python3.12/dist-packages/transformers/models/__init__.py", line 15, in <module>
from . import (
File "/usr/local/lib/python3.12/dist-packages/transformers/models/mt5/__init__.py", line 29, in <module>
from ..t5.tokenization_t5 import T5Tokenizer
File "/usr/local/lib/python3.12/dist-packages/transformers/models/t5/tokenization_t5.py", line 24, in <module>
import sentencepiece as spm
File "/usr/local/lib/python3.12/dist-packages/sentencepiece/__init__.py", line 64, in <module>
class ImmutableSentencePieceText_ImmutableSentencePiece(object):
File "/usr/local/lib/python3.12/dist-packages/sentencepiece/__init__.py", line 70, in ImmutableSentencePieceText_ImmutableSentencePiece
__swig_destroy__ = _sentencepiece.delete_ImmutableSentencePieceText_ImmutableSentencePiece
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: module 'sentencepiece._sentencepiece' has no attribute 'delete_ImmutableSentencePieceText_ImmutableSentencePiece'
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/content/gdrive/MyDrive/sd/stable-diffusion-webui/webui.py", line 13, in <module>
initialize.imports()
File "/content/gdrive/MyDrive/sd/stable-diffusion-webui/modules/initialize.py", line 17, in imports
import pytorch_lightning # noqa: F401
^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/dist-packages/pytorch_lightning/__init__.py", line 34, in <module>
from pytorch_lightning.callbacks import Callback # noqa: E402
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/dist-packages/pytorch_lightning/callbacks/__init__.py", line 14, in <module>
from pytorch_lightning.callbacks.callback import Callback
File "/usr/local/lib/python3.12/dist-packages/pytorch_lightning/callbacks/callback.py", line 25, in <module>
from pytorch_lightning.utilities.types import STEP_OUTPUT
File "/usr/local/lib/python3.12/dist-packages/pytorch_lightning/utilities/types.py", line 28, in <module>
from torchmetrics import Metric
File "/usr/local/lib/python3.12/dist-packages/torchmetrics/__init__.py", line 14, in <module>
from torchmetrics import functional # noqa: E402
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/dist-packages/torchmetrics/functional/__init__.py", line 77, in <module>
from torchmetrics.functional.text.bleu import bleu_score
File "/usr/local/lib/python3.12/dist-packages/torchmetrics/functional/text/__init__.py", line 30, in <module>
from torchmetrics.functional.text.bert import bert_score # noqa: F401
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/dist-packages/torchmetrics/functional/text/bert.py", line 24, in <module>
from torchmetrics.functional.text.helper_embedding_metric import (
File "/usr/local/lib/python3.12/dist-packages/torchmetrics/functional/text/helper_embedding_metric.py", line 26, in <module>
from transformers import AutoModelForMaskedLM, AutoTokenizer, PreTrainedModel, PreTrainedTokenizerBase
File "<frozen importlib._bootstrap>", line 1412, in _handle_fromlist
File "/usr/local/lib/python3.12/dist-packages/transformers/utils/import_utils.py", line 1136, in __getattr__
module = self._get_module(self._class_to_module[name])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/dist-packages/transformers/utils/import_utils.py", line 1148, in _get_module
raise RuntimeError(
RuntimeError: Failed to import transformers.models.auto because of the following error (look up to see its traceback):
module 'sentencepiece._sentencepiece' has no attribute 'delete_ImmutableSentencePieceText_ImmutableSentencePiece'
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Source: TheLastBen/fast-stable-diffusion