How to fix the bug “Expected "required", "optional", or "repeated".”？

[에러 메세지]

object_detection/protos/anchor_generator.proto:11:3: Expected "required", "optional", or "repeated".

object_detection/protos/anchor_generator.proto:11:32: Missing field number.

[에러 원인]

protoc ver 3.3. 설치 필요

[해결 방안]

tensorflow$ mkdir protoc_3.3 tensorflow$ cd protoc_3.3 tensorflow/protoc_3.3$ wget https://github.com/google/protobuf/releases/download/v3.3.0/protoc-3.3.0-linux-x86_64.zip tensorflow/protoc_3.3$ chmod 775 protoc-3.3.0-linux-x86_64.zip tensorflow/protoc_3.3$ unzip protoc-3.3.0-linux-x86_64.zip tensorflow/protoc_3.3$ cd ../models/ tensorflow/protoc_3.3$ ../protoc_3.3/bin/protoc object_detection/protos/*.proto --python_out=.

[참고]

https://github.com/tensorflow/models/issues/1834