'dict' object has no attribute 'task' while decoding the language model

[Sougata Mukherjee]

When i'm trying to run the inference of the finetuned model along with transformer based language model which i'v trained i'm getting this error:

INFO:__main__:| decoding with criterion ctc INFO:__main__:| loading model(s) from /data/Sougata/vakyansh-wav2vec2-experimentation/checkpoints/finetuning/checkpoint_best.pt INFO:fairseq.data.audio.raw_audio_dataset:loaded 3012, skipped 0 samples INFO:__main__:| /data/Sougata/vakyansh-wav2vec2-experimentation/data/inference/IITDH_ENG test 3012 examples Traceback (most recent call last): File "../../wav2vec/fairseq/examples/speech_recognition/infer.py", line 427, in <module> cli_main() File "../../wav2vec/fairseq/examples/speech_recognition/infer.py", line 423, in cli_main main(args) File "../../wav2vec/fairseq/examples/speech_recognition/infer.py", line 283, in main generator = build_generator(args) File "../../wav2vec/fairseq/examples/speech_recognition/infer.py", line 276, in build_generator return W2lFairseqLMDecoder(args, task.target_dictionary) File "/data/Sougata/odia_asr/vakyansh-wav2vec2-experimentation/wav2vec/fairseq/examples/speech_recognition/w2l_decoder.py", line 383, in __init__ with open_dict(lm_args.task): AttributeError: 'dict' object has no attribute 'task'

The command I am using is a folows:-

python ../../wav2vec/fairseq/examples/speech_recognition/infer.py ${data_path} --task audio_pretraining --nbest 1 --path \ ${parentdir}/checkpoints/finetuning/checkpoint_best.pt --gen-subset test --results-path ${result_path} --w2l-decoder fairseqlm \ --lm-model ${parentdir}/lm/${lm_name}/checkpoint_best.pt --lm-weight 2 --word-score -1 --sil-weight 0 --criterion ctc --labels ltr --max-tokens 4000000\ --lexicon ${parentdir}/lm/${lm_name}/lexicon.lst --post-process letter --beam ${beam} \ --model-overrides "{'w2v_path':'${pretrained_model_path}'}"

I have prepared the language model following the link befow:-

https://towardsdatascience.com/implementing-transformer-for-language-modeling-ba5dd60389a2

I have tried what is given in the following link:-
https://github.com/facebookresearch/fairseq/issues/3488

Environment:

• ubuntu: 20.04
• PyTorch Version :1.8.0+cu111
• OS :Linux
• How fairseq is installed:
  git clone https://github.com/Open-Speech-EkStep/fairseq -b v2-hydra
  cd fairseq
  pip install -e .
• Python version:3.8.10
• CUDA/cuDNN version:11.6
• GPU models and configuration:
  Model: Unknown
  IRQ: 116
  GPU UUID: GPU-9786cde7-94ef-0954-9d33-a411e441499d
  Video BIOS: 90.02.15.00.04
  Bus Type: PCIe
  DMA Size: 47 bits
  DMA Mask: 0x7fffffffffff
  Bus Location: 0000:18:00.0
  Device Minor: 0
  GPU Excluded: No

Can somebody kindly please fix this issue?

[Sougata Mukherjee]

A gentle reminder to the fairseq users