Training MS_COCO Error

[Dheeru]

When i'am trying to Run (Train .py) By using MS-COCO dataset . I'am facing the below errors.

please provide suggestions to solve those errors.

ERRORS:
Traceback (most recent call last):
File "/home/mcis-lap-40/raviwork/Tensorflow_Models/text-to-image-generation/train.py", line 227, in
main()
File "/home/mcis-lap-40/raviwork/Tensorflow_Models/text-to-image-generation/train.py", line 105, in main
loaded_data)
TypeError: 'NoneType' object is not iterable

Process finished with exit code 1

[LBJYPY]

have you solved this problem？