RuntimeError: Configuration option n_hidden_6 not found in config.

[jeremiahrose]

Hi there!
I have set up the Docker image for training as per the Coqui STT 0.10.0-alpha.13 documentation (as far as possible - the docs are contradictory in places - but that's to be expected of a rapidly changing alpha!).

Inside the docker container I have:

root@f126b631d20c:/code# ls /code/stt-data/cv-corpus-7.0-singleword/en/
clips  dev.tsv  invalidated.tsv  other.tsv  test.tsv  train.tsv  validated.tsv

The common voice dataset has already been imported with /code/bin/import_cv2.py /code/stt-data/cv-corpus-7.0-singleword/en/

Then when I try to train the model I get this:

root@f126b631d20c:/code# python3 train.py \
>           --train_files /code/stt-data/cv-corpus-7.0-singleword/en/clips/train.csv \
>           --dev_files /code/stt-data/cv-corpus-7.0-singleword/en/clips/dev.csv \
>           --test_files /code/stt-data/cv-corpus-7.0-singleword/en/clips/test.csv \
>           --checkpoint_dir /code/stt-data/checkpoints \
>           --export_dir /code/stt-data/exported-model \
>           --n_hidden 64 \
>           --dropout_rate 0.3 \
>           --export_tflite=true
WARNING:tensorflow:Deprecation warnings have been disabled. Set TF_ENABLE_DEPRECATION_WARNINGS=1 to re-enable them.
Traceback (most recent call last):
  File "train.py", line 12, in <module>
    stt_train.main()
  File "/code/training/coqui_stt_training/train.py", line 1258, in main
    train()
  File "/code/training/coqui_stt_training/train.py", line 619, in train
    gradients, loss, non_finite_files = get_tower_results(
  File "/code/training/coqui_stt_training/train.py", line 417, in get_tower_results
    avg_loss, non_finite_files = calculate_mean_edit_distance_and_loss(
  File "/code/training/coqui_stt_training/train.py", line 335, in calculate_mean_edit_distance_and_loss
    logits, _ = create_model(
  File "/code/training/coqui_stt_training/train.py", line 294, in create_model
    "layer_6", layer_5, Config.n_hidden_6, relu=False
  File "/code/training/coqui_stt_training/util/config.py", line 28, in __getattr__
    raise RuntimeError(
RuntimeError: Configuration option n_hidden_6 not found in config.

Is this because I haven't yet made an alphabet.txt file? Docs are unclear on how/when/where to set this up.

Thanks!

[JRMeyer]

Hi @jeremiahrose 👋 -- you're right, this is an alphabet issue: #1914

Both the docs and the error message should be more informative

[jeremiahrose]

Adding an alphabet.txt with --alphabet_config_path /code/stt-data/alphabet.txt \ seemed to solve the above error.

There's no mention of the above option in the current docs though.