在处理数据集训练神经网路时，运到protoc版本相关的报错，If this call came from a _pb2.py file, your generated code is out of date and must be regenerated with protoc 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.
解决方法：将protobuf 4.21.1版本降级到3.20.x，通常即可解决问题。
pip3 install --upgrade protobuf==3.20.1
Original: https://www.cnblogs.com/booturbo/p/16339195.html
Author: BooTurbo
Title: 关于protobuf报错：If this call came from a _pb2.py file, your generated code is out of date and must be regenerated with protoc 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.
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