I got this error 'TypeError: issubclass() arg 1 must be a class'

[Cate9021]

Traceback (most recent call last): File "C:\musicgen\audiocraft-main\app.py", line 11, in <module> from audiocraft.models import MusicGen File "C:\musicgen\audiocraft-main\audiocraft\__init__.py", line 8, in <module> from . import data, modules, models File "C:\musicgen\audiocraft-main\audiocraft\models\__init__.py", line 8, in <module> from .musicgen import MusicGen File "C:\musicgen\audiocraft-main\audiocraft\models\musicgen.py", line 18, in <module> from .lm import LMModel File "C:\musicgen\audiocraft-main\audiocraft\models\lm.py", line 18, in <module> from ..modules.conditioners import ( File "C:\musicgen\audiocraft-main\audiocraft\modules\conditioners.py", line 19, in <module> import spacy File "C:\Users\PC\.conda\envs\musicgen\lib\site-packages\spacy\__init__.py", line 14, in <module> from . import pipeline # noqa: F401 File "C:\Users\PC\.conda\envs\musicgen\lib\site-packages\spacy\pipeline\__init__.py", line 1, in <module> from .attributeruler import AttributeRuler File "C:\Users\PC\.conda\envs\musicgen\lib\site-packages\spacy\pipeline\attributeruler.py", line 6, in <module> from .pipe import Pipe File "spacy\pipeline\pipe.pyx", line 1, in init spacy.pipeline.pipe File "spacy\vocab.pyx", line 1, in init spacy.vocab File "C:\Users\PC\.conda\envs\musicgen\lib\site-packages\spacy\tokens\__init__.py", line 1, in <module> from .doc import Doc File "spacy\tokens\doc.pyx", line 36, in init spacy.tokens.doc File "C:\Users\PC\.conda\envs\musicgen\lib\site-packages\spacy\schemas.py", line 250, in <module> class TokenPattern(BaseModel): File "pydantic\main.py", line 197, in pydantic.main.ModelMetaclass.__new__ File "pydantic\fields.py", line 506, in pydantic.fields.ModelField.infer File "pydantic\fields.py", line 436, in pydantic.fields.ModelField.__init__ File "pydantic\fields.py", line 552, in pydantic.fields.ModelField.prepare File "pydantic\fields.py", line 661, in pydantic.fields.ModelField._type_analysis File "pydantic\fields.py", line 668, in pydantic.fields.ModelField._type_analysis File "C:\Users\PC\.conda\envs\musicgen\lib\typing.py", line 852, in __subclasscheck__ return issubclass(cls, self.__origin__) TypeError: issubclass() arg 1 must be a class trying to run it in conda enviroment but failed.

[Cate9021]

`File ~.conda\envs\musicgen1\lib\typing.py:852, in _SpecialGenericAlias.subclasscheck(self, cls) 850 return issubclass(cls.origin, self.origin) 851 if not isinstance(cls, _GenericAlias): --> 852 return issubclass(cls, self.origin) 853 return super().subclasscheck(cls)

TypeError: issubclass() arg 1 must be a class`

Same error in Jupyter under conda .env.

[Cate9021]

Fixed. By not using Python 3.9 but Python 3.10.11