【TypeError: Descriptors cannot not be created directly. 】解决方法

报错信息： 

TypeError: Descriptors cannot not be created directly. If this call came from a _pb2.py
 file, your generated code is out of date and must be regenerated with protoc >= 3.19.0. 

If you cannot immediately regenerate your protos, some other possible workarounds are: 
 1. Downgrade the protobuf package to 3.20.x or lower. 
 2. Set PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=python (but this will use pure-Python parsing and will be much slower).

 解决方法：

pip install protobuf==3.19.0