出现该问题gradio.exceptions.Error: AttributeError("'NoneType' object has no attribute 'task'")

[ZhouhaoJiang]

最新的代码会出现这个问题不知道怎么回事，用之前的代码就不会

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\12642\.conda\envs\voice\lib\site-packages\gradio\routes.py", line 401, in run_predict
    output = await app.get_blocks().process_api(
  File "C:\Users\12642\.conda\envs\voice\lib\site-packages\gradio\blocks.py", line 1302, in process_api
    result = await self.call_function(
  File "C:\Users\12642\.conda\envs\voice\lib\site-packages\gradio\blocks.py", line 1025, in call_function
    prediction = await anyio.to_thread.run_sync(
  File "C:\Users\12642\.conda\envs\voice\lib\site-packages\anyio\to_thread.py", line 31, in run_sync
    return await get_asynclib().run_sync_in_worker_thread(
  File "C:\Users\12642\.conda\envs\voice\lib\site-packages\anyio\_backends\_asyncio.py", line 937, in run_sync_in_worker_thread
    return await future
  File "C:\Users\12642\.conda\envs\voice\lib\site-packages\anyio\_backends\_asyncio.py", line 867, in run
    result = context.run(func, *args)
  File "E:\so-vits-svc-4.0\webUI.py", line 95, in modelAnalysis
    raise gr.Error(e)
gradio.exceptions.Error: AttributeError("'NoneType' object has no attribute 'task'")

[ZhouhaoJiang]

涉及到FairSeq 库中的 tasks.setup_task() 函数

def setup_task(task_cfg: Union[DictConfig, Namespace], **kwargs):
    if isinstance(task_cfg, DictConfig):
        return TASK_REGISTRY[task_cfg._name].setup_task(task_cfg, **kwargs)
    return TASK_REGISTRY[task_cfg.task].setup_task(task_cfg, **kwargs)

FairSeq 库中的一个函数 load_model_ensemble_and_task()

def load_model_ensemble_and_task(
    filenames, arg_overrides=None, task=None, strict=True, suffix="", num_shards=1
):
    from fairseq import tasks

    assert not (
        strict and num_shards > 1
    ), "Cannot load state dict with strict=True and checkpoint shards > 1"
    ensemble = []
    for filename in filenames:
        orig_filename = filename
        for shard_idx in range(num_shards):
            if num_shards == 1:
                filename = filename.replace(".pt", suffix + ".pt")
            else:
                filename = orig_filename[:-3] + f"_part{shard_idx}.pt"
            if not PathManager.exists(filename):
                raise IOError("Model file not found: {}".format(filename))
            state = load_checkpoint_to_cpu(filename, arg_overrides)
            if shard_idx == 0:
                args = state["args"]
                if task is None:
                    task = tasks.setup_task(args)

                # build model for ensemble
                model = task.build_model(args)
            model.load_state_dict(state["model"], strict=strict, args=args)
        ensemble.append(model)
    return ensemble, args, task

def get_hubert_model():
  vec_path = "hubert/checkpoint_best_legacy_500.pt"
  print("load model(s) from {}".format(vec_path))
  from fairseq import checkpoint_utils
  models, saved_cfg, task = checkpoint_utils.load_model_ensemble_and_task(
    [vec_path],
    suffix="",
  )
  model = models[0]
  model.eval()
  return model

[ZhouhaoJiang]

已经解决fairseq==0.12.2版本问题