Train script is not working

[Kirmani66]

It is giving nonetype error

InvalidArgumentError: TypeError: 'NoneType' object is not subscriptable
Traceback (most recent call last):

File "/usr/local/lib/python3.7/dist-packages/tensorflow/python/ops/script_ops.py", line 249, in call
ret = func(*args)

File "/usr/local/lib/python3.7/dist-packages/tensorflow/python/autograph/impl/api.py", line 645, in wrapper
return func(*args, **kwargs)

File "/usr/local/lib/python3.7/dist-packages/tensorflow/python/data/ops/dataset_ops.py", line 961, in generator_py_func
values = next(generator_state.get_iterator(iterator_id))

File "/usr/local/lib/python3.7/dist-packages/tensorflow/python/keras/engine/data_adapter.py", line 837, in wrapped_generator
for data in generator_fn():

File "/usr/local/lib/python3.7/dist-packages/tensorflow/python/keras/engine/data_adapter.py", line 963, in generator_fn
yield x[i]

File "../utils.py", line 159, in getitem
X, y_tensor, y_bbox = self.__data_generation(lines)

File "../utils.py", line 179, in __data_generation
img_data, box_data = self.get_data(line)

File "../utils.py", line 190, in get_data
img = cv2.imread(os.path.join(self.folder_path, img_path))[:, :, ::-1]

TypeError: 'NoneType' object is not subscriptable

 [[{{node PyFunc}}]]
 [[IteratorGetNext]] [Op:__inference_train_function_74263]

Function call stack:
train_function

[Mahmood-Hussain]

Did you check your dataset? Are any images missing pre-defined bounding boxes?

[somesh-kb]

Facing the same issue. Same error as reported by Kirmani66. Any suggestion to overcome that.