Traceback (most recent call last):


 "/mnt/scratch0/clusterfuzz/src/python/bot/fuzzers/ml/gradientfuzz/train.py", line 163, in <module>

main()


 "/mnt/scratch0/clusterfuzz/src/python/bot/fuzzers/ml/gradientfuzz/train.py", line 159, in main

train_model(model, config, train_dataset, val_dataset)


 "/mnt/scratch0/clusterfuzz/src/python/bot/fuzzers/ml/gradientfuzz/train.py", line 132, in train_model

use_multiprocessing=False)


 "/usr/local/lib/python3.7/site-packages/tensorflow/python/keras/engine/training.py", line 108, in _method_wrapper

return method(self, *args, **kwargs)


 "/usr/local/lib/python3.7/site-packages/tensorflow/python/keras/engine/training.py", line 1098, in fit

tmp_logs = train_function(iterator)


 "/usr/local/lib/python3.7/site-packages/tensorflow/python/eager/def_function.py", line 780, in __call__

result = self._call(*args, **kwds)


 "/usr/local/lib/python3.7/site-packages/tensorflow/python/eager/def_function.py", line 823, in _call

self._initialize(args, kwds, add_initializers_to=initializers)


 "/usr/local/lib/python3.7/site-packages/tensorflow/python/eager/def_function.py", line 697, in _initialize

*args, **kwds))


 "/usr/local/lib/python3.7/site-packages/tensorflow/python/eager/function.py", line 2855, in _get_concrete_function_internal_garbage_collected

graph_function, _, _ = self._maybe_define_function(args, kwargs)


 "/usr/local/lib/python3.7/site-packages/tensorflow/python/eager/function.py", line 3213, in _maybe_define_function

graph_function = self._create_graph_function(args, kwargs)


 "/usr/local/lib/python3.7/site-packages/tensorflow/python/eager/function.py", line 3075, in _create_graph_function

capture_by_value=self._capture_by_value),


 "/usr/local/lib/python3.7/site-packages/tensorflow/python/framework/func_graph.py", line 986, in func_graph_from_py_func

func_outputs = python_func(*func_args, **func_kwargs)


 "/usr/local/lib/python3.7/site-packages/tensorflow/python/eager/def_function.py", line 600, in wrapped_fn

return weak_wrapped_fn().__wrapped__(*args, **kwds)


 "/usr/local/lib/python3.7/site-packages/tensorflow/python/framework/func_graph.py", line 973, in wrapper

raise e.ag_error_metadata.to_exception(e)
TypeError: in user code:

Traceback (most recent call last):


 "<string>", line 1, in <module>


 "/home/pnguyen/.local/lib/python3.7/site-packages/torchtext/data/field.py", line 163, in __init__

self.tokenize = get_tokenizer(tokenize, tokenizer_language)


 "/home/pnguyen/.local/lib/python3.7/site-packages/torchtext/data/utils.py", line 114, in get_tokenizer

spacy = spacy.load(language)


 "/home/pnguyen/.local/lib/python3.7/site-packages/spacy/__init__.py", line 27, in load

return util.load_model(name, **overrides)


 "/home/pnguyen/.local/lib/python3.7/site-packages/spacy/util.py", line 164, in load_model

return load_model_from_link(name, **overrides)


 "/home/pnguyen/.local/lib/python3.7/site-packages/spacy/util.py", line 181, in load_model_from_link

return cls.load(**overrides)


 "/home/pnguyen/.local/lib/python3.7/site-packages/spacy/data/en/__init__.py", line 12, in load

return load_model_from_init_py(__file__, **overrides)


 "/home/pnguyen/.local/lib/python3.7/site-packages/spacy/util.py", line 228, in load_model_from_init_py

return load_model_from_path(data_path, meta, **overrides)


 "/home/pnguyen/.local/lib/python3.7/site-packages/spacy/util.py", line 199, in load_model_from_path

nlp = cls(meta=meta, **overrides)


 "/home/pnguyen/.local/lib/python3.7/site-packages/spacy/language.py", line 175, in __init__

user_factories = util.get_entry_points(util.ENTRY_POINTS.factories)


 "/home/pnguyen/.local/lib/python3.7/site-packages/spacy/util.py", line 286, in get_entry_points

result[entry_point.name] = entry_point.load()


 "/usr/local/lib/python3.7/dist-packages/pkg_resources/__init__.py", line 2450, in load

return self.resolve()


 "/usr/local/lib/python3.7/dist-packages/pkg_resources/__init__.py", line 2456, in resolve

module = __import__(self.module_name, fromlist=['__name__'], level=0)


 "/home/pnguyen/.local/lib/python3.7/site-packages/spacy_transformers/__init__.py", line 1, in <module>

from .language import TransformersLanguage


 "/home/pnguyen/.local/lib/python3.7/site-packages/spacy_transformers/language.py", line 5, in <module>

from .util import is_special_token, pkg_meta, ATTRS, PIPES, LANG_FACTORY


 "/home/pnguyen/.local/lib/python3.7/site-packages/spacy_transformers/util.py", line 2, in <module>

import transformers


 "/home/pnguyen/.local/lib/python3.7/site-packages/transformers/__init__.py", line 20, in <module>

from .file_utils import (TRANSFORMERS_CACHE, PYTORCH_TRANSFORMERS_CACHE, PYTORCH_PRETRAINED_BERT_CACHE,


 "/home/pnguyen/.local/lib/python3.7/site-packages/transformers/file_utils.py", line 29, in <module>

import tensorflow as tf


 "/home/pnguyen/.local/lib/python3.7/site-packages/tensorflow/__init__.py", line 40, in <module>

from tensorflow.python.tools import module_util as _module_util


 "/home/pnguyen/.local/lib/python3.7/site-packages/tensorflow/python/__init__.py", line 63, in <module>

from tensorflow.python.framework.framework_lib import *
# pylint: disable=redefined-builtin


 "/home/pnguyen/.local/lib/python3.7/site-packages/tensorflow/python/framework/framework_lib.py", line 52, in <module>

from tensorflow.python.framework.importer import import_graph_def


 "/home/pnguyen/.local/lib/python3.7/site-packages/tensorflow/python/framework/importer.py", line 28, in <module>

from tensorflow.python.framework import function


 "/home/pnguyen/.local/lib/python3.7/site-packages/tensorflow/python/framework/function.py", line 36, in <module>

from tensorflow.python.ops import array_ops


 "/home/pnguyen/.local/lib/python3.7/site-packages/tensorflow/python/ops/array_ops.py", line 212, in <module>

listdiff.__doc__ = gen_array_ops.list_diff.__doc__ + "\n" + listdiff.__doc__
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'
