Retrieval-based-Voice-Conversion-WebUI: mutable default for field common is not allowed: use default_factory

When running “infer-web.py” and the “gui_v1.py” python files including running the batch files they showed up an error regarding this.

ValueError: mutable default <class 'fairseq.dataclass.configs.CommonConfig'> for field common is not allowed: use default_factory

Here is the whole error log shown below here.

gui_v1.py:

  File "", line 58, in <module>
    import tools.rvc_for_realtime as rvc_for_realtime
  File "", line 6, in <module>
    import fairseq
  File "", line 20, in <module>
    from fairseq.distributed import utils as distributed_utils
  File "", line 7, in <module>
    from .fully_sharded_data_parallel import (
  File "", line 10, in <module>
    from fairseq.dataclass.configs import DistributedTrainingConfig
  File "", line 6, in <module>
    from .configs import FairseqDataclass
  File "", line 1104, in <module>
    @dataclass
     ^^^^^^^^^
  File "", line 1220, in dataclass
    return wrap(cls)
           ^^^^^^^^^
  File "", line 1210, in wrap
    return _process_class(cls, init, repr, eq, order, unsafe_hash,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "", line 958, in _process_class
    cls_fields.append(_get_field(cls, name, type, kw_only))
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "", line 815, in _get_field
    raise ValueError(f'mutable default {type(f.default)} for field '
ValueError: mutable default <class 'fairseq.dataclass.configs.CommonConfig'> for field common is not allowed: use default_factory

infer-web.py:

Traceback (most recent call last):
  File "", line 14, in <module>
    import fairseq
  File "", line 20, in <module>
    from fairseq.distributed import utils as distributed_utils
  File "", line 7, in <module>
    from .fully_sharded_data_parallel import (
  File "", line 10, in <module>
    from fairseq.dataclass.configs import DistributedTrainingConfig
  File "", line 6, in <module>
    from .configs import FairseqDataclass
  File "", line 1104, in <module>
    @dataclass
     ^^^^^^^^^
  File "", line 1220, in dataclass
    return wrap(cls)
           ^^^^^^^^^
  File "", line 1210, in wrap
    return _process_class(cls, init, repr, eq, order, unsafe_hash,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "", line 958, in _process_class
    cls_fields.append(_get_field(cls, name, type, kw_only))
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "", line 815, in _get_field
    raise ValueError(f'mutable default {type(f.default)} for field '
ValueError: mutable default <class 'fairseq.dataclass.configs.CommonConfig'> for field common is not allowed: use default_factory