Datasets cannot be downloaded in the colab

[vmoens]

Running the first and second cells of the "download datasets" section of the google colab linked in the readme results in

Downloading 1 datasets to ~/tensorflow_datasets.
  0%|          | 0/1 [00:00<?, ?it/s]
---------------------------------------------------------------------------
FileNotFoundError                         Traceback (most recent call last)
[/usr/local/lib/python3.10/dist-packages/tensorflow_datasets/core/dataset_info.py](https://localhost:8080/#) in read_from_json(path)
   1033   try:
-> 1034     json_str = epath.Path(path).read_text()
   1035   except OSError as e:

27 frames
FileNotFoundError: [Errno 2] No such file or directory: 'kuka/0.1.0/dataset_info.json'

The above exception was the direct cause of the following exception:

FileNotFoundError                         Traceback (most recent call last)
FileNotFoundError: Could not load dataset info from kuka/0.1.0/dataset_info.json

The above exception was the direct cause of the following exception:

FileNotFoundError                         Traceback (most recent call last)
[/usr/local/lib/python3.10/dist-packages/tensorflow_datasets/core/utils/py_utils.py](https://localhost:8080/#) in reraise(e, prefix, suffix)
    381     else:
    382       exception = RuntimeError(f'{type(e).__name__}: {msg}')
--> 383     raise exception from e
    384   # Otherwise, modify the exception in-place
    385   elif len(e.args) <= 1:

FileNotFoundError: Failed to construct dataset "kuka", builder_kwargs "{'data_dir': '~/tensorflow_datasets'}": Could not load dataset info from kuka/0.1.0/dataset_info.json

(I selected only the kuka dataset but the exception is identical with the others).

[kpertsch]

I have also observed this with the most recent version of tensorflow_datasets (4.9.4) -- this unfortunately seems to be a bug introduced with the recent update. I have raised an issue about it (tensorflow/datasets#5203)
In the meantime, please downgrade to the previous version of tensorflow_datasets (4.9.3) which should work!