ERROR: Allennlp params.py ValueError: Cannot convert variable to bool: all

z 运行repo的例子，怎么报出这个error? 如何解决

File "specter/predict_command.py", line 225, in
run()
File "specter/predict_command.py", line 221, in run
main(prog="allennlp")
File "specter/predict_command.py", line 215, in main
args.func(args)
File "specter/predict_command.py", line 159, in _predict
predictor = _get_predictor(args)
File "specter/predict_command.py", line 148, in _get_predictor
overrides=args.overrides)
File "/home/delta/miniconda3/lib/python3.7/site-packages/allennlp/models/archi val.py", line 230, in load_archive
cuda_device=cuda_device)
File "/home/delta/miniconda3/lib/python3.7/site-packages/allennlp/models/model .py", line 327, in load
return cls.by_name(model_type)._load(config, serialization_dir, weights_file , cuda_device)
File "/home/delta/miniconda3/lib/python3.7/site-packages/allennlp/models/model .py", line 265, in _load
model = Model.from_params(vocab=vocab, params=model_params)
File "/home/delta/miniconda3/lib/python3.7/site-packages/allennlp/common/from_ params.py", line 365, in from_params
return subclass.from_params(params=params, **extras)
File "/home/delta/miniconda3/lib/python3.7/site-packages/allennlp/common/from_ params.py", line 386, in from_params
kwargs = create_kwargs(cls, params, **extras)
File "/home/delta/miniconda3/lib/python3.7/site-packages/allennlp/common/from_ params.py", line 133, in create_kwargs
kwargs[name] = construct_arg(cls, name, annotation, param.default, params, * *extras)
File "/home/delta/miniconda3/lib/python3.7/site-packages/allennlp/common/from_ params.py", line 229, in construct_arg
return annotation.from_params(params=subparams, **subextras)
File "/home/delta/miniconda3/lib/python3.7/site-packages/allennlp/common/from_ params.py", line 365, in from_params
return subclass.from_params(params=params, **extras)
File "/home/delta/miniconda3/lib/python3.7/site-packages/allennlp/modules/text _field_embedders/basic_text_field_embedder.py", line 160, in from_params
for name, subparams in token_embedder_params.items()
File "/home/delta/miniconda3/lib/python3.7/site-packages/allennlp/modules/text _field_embedders/basic_text_field_embedder.py", line 160, in
for name, subparams in token_embedder_params.items()
File "/home/delta/miniconda3/lib/python3.7/site-packages/allennlp/common/from_ params.py", line 365, in from_params
return subclass.from_params(params=params, **extras)
File "/home/delta/miniconda3/lib/python3.7/site-packages/allennlp/common/from_ params.py", line 386, in from_params
kwargs = create_kwargs(cls, params, **extras)
File "/home/delta/miniconda3/lib/python3.7/site-packages/allennlp/common/from_ params.py", line 133, in create_kwargs
kwargs[name] = construct_arg(cls, name, annotation, param.default, params, * *extras)
File "/home/delta/miniconda3/lib/python3.7/site-packages/allennlp/common/from_ params.py", line 243, in construct_arg
return params.pop_bool(name, default) if optional else params.pop_bool(name)
File "/home/delta/miniconda3/lib/python3.7/site-packages/allennlp/common/param s.py", line 304, in pop_bool
raise ValueError("Cannot convert variable to bool: " + value)
ValueError: Cannot convert variable to bool: all