Visual Studio Code – How to resolve "cannot import name '_MissingValues' from 'sklearn.utils._param_validation'" issue when trying to import imblearn?

I am trying to import imblearn into my python notebook after installing the required modules. However, I am getting the following error:

Additional info: I am using a virtual environment in Visual Studio Code.

I’ve made sure that venv was selected as interpreter and as the notebook kernel. I’ve reloaded the window and restarted the kernel several times. I have also uninstalled and installed imbalanced-learn and scikit-learn several times, with and without "–upgrade". I’m still getting the same error.

Edit: Full traceback of error

{
    "name": "ImportError",
    "message": "cannot import name '_MissingValues' from 'sklearn.utils._param_validation' (c:\Users\wen\OneDrive\Desktop\Colab_Notebooks\.venv\Lib\site-packages\sklearn\utils\_param_validation.py)",
    "stack": "u001b[1;31m---------------------------------------------------------------------------u001b[0mnu001b[1;31mImportErroru001b[0m                               Traceback (most recent call last)nCell u001b[1;32mIn[1], line 1u001b[0mnu001b[1;32m----> 1u001b[0m u001b[39mimportu001b[39;00m u001b[39mimblearnu001b[39;00mnu001b[0;32m      2u001b[0m u001b[39m# Data Processingu001b[39;00mnu001b[0;32m      3u001b[0m u001b[39mimportu001b[39;00m u001b[39mpandasu001b[39;00m u001b[39masu001b[39;00m u001b[39mpdu001b[39;00mnnFile u001b[1;32mc:\Users\wen\OneDrive\Desktop\Colab_Notebooks\.venv\Lib\site-packages\imblearn\__init__.py:52u001b[0mnu001b[0;32m     48u001b[0m     sysu001b[39m.u001b[39mstderru001b[39m.u001b[39mwrite(u001b[39m"u001b[39mu001b[39mPartial import of imblearn during the build process.u001b[39mu001b[39m\nu001b[39;00mu001b[39m"u001b[39m)nu001b[0;32m     49u001b[0m     u001b[39m# We are not importing the rest of scikit-learn during the buildu001b[39;00mnu001b[0;32m     50u001b[0m     u001b[39m# process, as it may not be compiled yetu001b[39;00mnu001b[0;32m     51u001b[0m u001b[39melseu001b[39;00m:nu001b[1;32m---> 52u001b[0m     u001b[39mfromu001b[39;00m u001b[39m.u001b[39;00m u001b[39mimportu001b[39;00m (nu001b[0;32m     53u001b[0m         combine,nu001b[0;32m     54u001b[0m         ensemble,nu001b[0;32m     55u001b[0m         exceptions,nu001b[0;32m     56u001b[0m         metrics,nu001b[0;32m     57u001b[0m         over_sampling,nu001b[0;32m     58u001b[0m         pipeline,nu001b[0;32m     59u001b[0m         tensorflow,nu001b[0;32m     60u001b[0m         under_sampling,nu001b[0;32m     61u001b[0m         utils,nu001b[0;32m     62u001b[0m     )nu001b[0;32m     63u001b[0m     u001b[39mfromu001b[39;00m u001b[39m.u001b[39;00mu001b[39m_versionu001b[39;00m u001b[39mimportu001b[39;00m __version__nu001b[0;32m     64u001b[0m     u001b[39mfromu001b[39;00m u001b[39m.u001b[39;00mu001b[39mbaseu001b[39;00m u001b[39mimportu001b[39;00m FunctionSamplernnFile u001b[1;32mc:\Users\wen\OneDrive\Desktop\Colab_Notebooks\.venv\Lib\site-packages\imblearn\combine\__init__.py:5u001b[0mnu001b[0;32m      1u001b[0m u001b[39m"""The :mod:`imblearn.combine` provides methods which combineu001b[39;00mnu001b[0;32m      2u001b[0m u001b[39mover-sampling and under-sampling.u001b[39;00mnu001b[0;32m      3u001b[0m u001b[39m"""u001b[39;00mnu001b[1;32m----> 5u001b[0m u001b[39mfromu001b[39;00m u001b[39m.u001b[39;00mu001b[39m_smote_ennu001b[39;00m u001b[39mimportu001b[39;00m SMOTEENNnu001b[0;32m      6u001b[0m u001b[39mfromu001b[39;00m u001b[39m.u001b[39;00mu001b[39m_smote_tomeku001b[39;00m u001b[39mimportu001b[39;00m SMOTETomeknu001b[0;32m      8u001b[0m __all__ u001b[39m=u001b[39m [u001b[39m"u001b[39mu001b[39mSMOTEENNu001b[39mu001b[39m"u001b[39m, u001b[39m"u001b[39mu001b[39mSMOTETomeku001b[39mu001b[39m"u001b[39m]nnFile u001b[1;32mc:\Users\wen\OneDrive\Desktop\Colab_Notebooks\.venv\Lib\site-packages\imblearn\combine\_smote_enn.py:12u001b[0mnu001b[0;32m      9u001b[0m u001b[39mfromu001b[39;00m u001b[39msklearnu001b[39;00mu001b[39m.u001b[39;00mu001b[39mbaseu001b[39;00m u001b[39mimportu001b[39;00m clonenu001b[0;32m     10u001b[0m u001b[39mfromu001b[39;00m u001b[39msklearnu001b[39;00mu001b[39m.u001b[39;00mu001b[39mutilsu001b[39;00m u001b[39mimportu001b[39;00m check_X_ynu001b[1;32m---> 12u001b[0m u001b[39mfromu001b[39;00m u001b[39m.u001b[39;00mu001b[39m.u001b[39;00mu001b[39mbaseu001b[39;00m u001b[39mimportu001b[39;00m BaseSamplernu001b[0;32m     13u001b[0m u001b[39mfromu001b[39;00m u001b[39m.u001b[39;00mu001b[39m.u001b[39;00mu001b[39mover_samplingu001b[39;00m u001b[39mimportu001b[39;00m SMOTEnu001b[0;32m     14u001b[0m u001b[39mfromu001b[39;00m u001b[39m.u001b[39;00mu001b[39m.u001b[39;00mu001b[39mover_samplingu001b[39;00mu001b[39m.u001b[39;00mu001b[39mbaseu001b[39;00m u001b[39mimportu001b[39;00m BaseOverSamplernnFile u001b[1;32mc:\Users\wen\OneDrive\Desktop\Colab_Notebooks\.venv\Lib\site-packages\imblearn\base.py:21u001b[0mnu001b[0;32m     18u001b[0m u001b[39mfromu001b[39;00m u001b[39msklearnu001b[39;00mu001b[39m.u001b[39;00mu001b[39mutilsu001b[39;00mu001b[39m.u001b[39;00mu001b[39mmulticlassu001b[39;00m u001b[39mimportu001b[39;00m check_classification_targetsnu001b[0;32m     20u001b[0m u001b[39mfromu001b[39;00m u001b[39m.u001b[39;00mu001b[39mutilsu001b[39;00m u001b[39mimportu001b[39;00m check_sampling_strategy, check_target_typenu001b[1;32m---> 21u001b[0m u001b[39mfromu001b[39;00m u001b[39m.u001b[39;00mu001b[39mutilsu001b[39;00mu001b[39m.u001b[39;00mu001b[39m_param_validationu001b[39;00m u001b[39mimportu001b[39;00m validate_parameter_constraintsnu001b[0;32m     22u001b[0m u001b[39mfromu001b[39;00m u001b[39m.u001b[39;00mu001b[39mutilsu001b[39;00mu001b[39m.u001b[39;00mu001b[39m_validationu001b[39;00m u001b[39mimportu001b[39;00m ArraysTransformernu001b[0;32m     25u001b[0m u001b[39mclassu001b[39;00m u001b[39mSamplerMixinu001b[39;00m(BaseEstimator, metaclassu001b[39m=u001b[39mABCMeta):nnFile u001b[1;32mc:\Users\wen\OneDrive\Desktop\Colab_Notebooks\.venv\Lib\site-packages\imblearn\utils\_param_validation.py:908u001b[0mnu001b[0;32m    906u001b[0m u001b[39mfromu001b[39;00m u001b[39msklearnu001b[39;00mu001b[39m.u001b[39;00mu001b[39mutilsu001b[39;00mu001b[39m.u001b[39;00mu001b[39m_param_validationu001b[39;00m u001b[39mimportu001b[39;00m generate_valid_param  u001b[39m# noqau001b[39;00mnu001b[0;32m    907u001b[0m u001b[39mfromu001b[39;00m u001b[39msklearnu001b[39;00mu001b[39m.u001b[39;00mu001b[39mutilsu001b[39;00mu001b[39m.u001b[39;00mu001b[39m_param_validationu001b[39;00m u001b[39mimportu001b[39;00m validate_parameter_constraints  u001b[39m# noqau001b[39;00mnu001b[1;32m--> 908u001b[0m u001b[39mfromu001b[39;00m u001b[39msklearnu001b[39;00mu001b[39m.u001b[39;00mu001b[39mutilsu001b[39;00mu001b[39m.u001b[39;00mu001b[39m_param_validationu001b[39;00m u001b[39mimportu001b[39;00m (nu001b[0;32m    909u001b[0m     HasMethods,nu001b[0;32m    910u001b[0m     Hidden,nu001b[0;32m    911u001b[0m     Interval,nu001b[0;32m    912u001b[0m     Options,nu001b[0;32m    913u001b[0m     StrOptions,nu001b[0;32m    914u001b[0m     _ArrayLikes,nu001b[0;32m    915u001b[0m     _Booleans,nu001b[0;32m    916u001b[0m     _Callables,nu001b[0;32m    917u001b[0m     _CVObjects,nu001b[0;32m    918u001b[0m     _InstancesOf,nu001b[0;32m    919u001b[0m     _IterablesNotString,nu001b[0;32m    920u001b[0m     _MissingValues,nu001b[0;32m    921u001b[0m     _NoneConstraint,nu001b[0;32m    922u001b[0m     _PandasNAConstraint,nu001b[0;32m    923u001b[0m     _RandomStates,nu001b[0;32m    924u001b[0m     _SparseMatrices,nu001b[0;32m    925u001b[0m     _VerboseHelper,nu001b[0;32m    926u001b[0m     make_constraint,nu001b[0;32m    927u001b[0m     validate_params,nu001b[0;32m    928u001b[0m )nnu001b[1;31mImportErroru001b[0m: cannot import name '_MissingValues' from 'sklearn.utils._param_validation' (c:\Users\wen\OneDrive\Desktop\Colab_Notebooks\.venv\Lib\site-packages\sklearn\utils\_param_validation.py)"
} 

The versions of the modules are as follows:

scikit-learn 1.3.0

imblearn 0.0

imbalanced-learn 0.10.1