No examples were yielded in 'the300w_lp' datasets

When performing the following code in colab:

import tensorflow_datasets as tfds
tfds.load("the300w_lp")

The error:

Shuffling and writing examples to /root/tensorflow_datasets/the300w_lp/1.0.0.incompleteOUFQPN/the300w_lp-train.tfrecord
---------------------------------------------------------------------------
AssertionError                            Traceback (most recent call last)
<ipython-input-8-d9a26eef8c59> in <module>()
      1 import tensorflow_datasets as tfds
----> 2 tfds.load("the300w_lp")

7 frames
/usr/local/lib/python3.7/dist-packages/tensorflow_datasets/core/tfrecords_writer.py in _get_shard_boundaries(num_examples, number_of_shards)
    114 ) -> List[int]:
    115   if num_examples == 0:
--> 116     raise AssertionError("No examples were yielded.")
    117   if num_examples < number_of_shards:
    118     raise AssertionError("num_examples ({}) < number_of_shards ({})".format(

AssertionError: No examples were yielded.

The 'coco', 'mnist' etc. were loaded successfully. So I think there was something wrong with 'the300w_lp'.

Start by running the reported tfds.load("the300w_lp") example and tracing the dataset's generation path to determine why it yields no examples. Done means the dataset loads successfully and produces examples without the No examples were yielded assertion.