ValueError: optimizer got an empty parameter list

[florian-hoenicke]

Hi, when I try to train the model, I get the following output. Any idea how to handle it?
./run.py train -c config.json --cfg arch.cfg

Compose(
ProcessChannels(mode=avg)
AdditiveNoise(prob=0.3, sig=0.001, dist_type=normal)
RandomCropLength(prob=0.4, sig=0.25, dist_type=half)
ToTensorAudio()
)
AudioCRNN(
(spec): MelspectrogramStretch(num_mels=128, fft_length=2048, norm=spec_whiten, stretch_param=[0.4, 0.4])
(net): ModuleDict(
(main): Sequential()
)
)
Trainable parameters: 0
Traceback (most recent call last):
File "./run.py", line 176, in
train_main(config, args.resume)
File "./run.py", line 97, in train_main
optimizer = getattr(torch.optim, opt_name)(trainable_params, **opt_args)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/torch/optim/adam.py", line 42, in init
super(Adam, self).init(params, defaults)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/torch/optim/optimizer.py", line 46, in init
raise ValueError("optimizer got an empty parameter list")
ValueError: optimizer got an empty parameter list

[mathematiguy]

I figured this one out. The .cfg file included in the repo is crnn.cfg, not arch.cfg. I'll put through a PR to the readme file to fix this.