小编gua*_*lan的帖子

我只想完成一个简单的演示，但收到此错误消息。

Traceback (most recent call last):
  File "E:/grpc/biliService.py", line 10, in <module>
    import hello_bilibili_pb2 as pb2
  File "E:\grpc\hello_bilibili_pb2.py", line 21, in <module>
    _HELLODEWEIREQ = DESCRIPTOR.message_types_by_name['HelloDeweiReq']
AttributeError: 'NoneType' object has no attribute 'message_types_by_name'