No Checkpoint found in Model

[JustinSasek]

After downloading the birdsong separation model using the gsutil command, I only get a meta, index, and data file. There is no checkpoint file which causes checkpoint_path = tf.train.latest_checkpoint('bird_mixit_model_checkpoints/output_sources4/') to return None.

gsutil command:

gsutil -m cp -r \
  "gs://gresearch/sound_separation/bird_mixit_model_checkpoints" .

files downloaded:

bird_mixit_model_checkpoints
    LICENSE
    README
    output_sources8
        model.ckpt-2178900.index
        inference.meta
        model.ckpt-2178900.data-00000-of-00001
    output_sources4
        model.ckpt-3223090.index
        model.ckpt-3223090.data-00000-of-00001
        inference.meta