J'ai installé Tensorflow, mais je ne peux pas l'importer en Python: ImporterRor: Impossible d'importer le nom de "descripteur" de 'google.protobuf' (emplacement inconnu)

J'ai installé Tensorflow avec succès dans mon ordinateur portable Windows 10: xxx pré>

Cependant, lorsque j'essaie d'importer dans Python, je reçois un message d'erreur: P>

(base) C:\Users\Alienware>python
Python 3.7.4 (default, Aug  9 2019, 18:34:13) [MSC v.1915 64 bit (AMD64)] :: Anaconda, Inc. on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import tensorflow
2019-10-22 23:35:53.390099: I tensorflow/stream_executor/platform/default/dso_loader.cc:44] Successfully opened dynamic library cudart64_100.dll
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Users\Alienware\Anaconda3\lib\site-packages\tensorflow\__init__.py", line 98, in <module>
    from tensorflow_core import *
  File "C:\Users\Alienware\Anaconda3\lib\site-packages\tensorflow_core\__init__.py", line 40, in <module>
    from tensorflow.python.tools import module_util as _module_util
  File "C:\Users\Alienware\Anaconda3\lib\site-packages\tensorflow\__init__.py", line 50, in __getattr__
    module = self._load()
  File "C:\Users\Alienware\Anaconda3\lib\site-packages\tensorflow\__init__.py", line 44, in _load
    module = _importlib.import_module(self.__name__)
  File "C:\Users\Alienware\Anaconda3\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "C:\Users\Alienware\Anaconda3\lib\site-packages\tensorflow_core\python\__init__.py", line 52, in <module>
    from tensorflow.core.framework.graph_pb2 import *
  File "C:\Users\Alienware\Anaconda3\lib\site-packages\tensorflow_core\core\framework\graph_pb2.py", line 7, in <module>
    from google.protobuf import descriptor as _descriptor
ImportError: cannot import name 'descriptor' from 'google.protobuf' (unknown location)