cannot import name 'fpn_pb2' from 'object_detection.protos'

Question

I've installed tensorflow 2.x for using object detection on windows 10 and follow this tutorial

but this error after run python train.py --logtostderr --train_dir=training/ --pipeline_config_path=training/faster_rcnn_inception_v2_pets.config showing.

even run new command python model_main_tf2.py --train_dir=training/ --pipeline_config_path=training/faster_rcnn_inception_v2_pets.config

Answer 1

1. Check folder in directory ...\object_detection\protos and count how many _pb2.py and .protos (don't count init.py and pychance), if they equal then congratulation this forum not solve that problem, but if not go to no.2

2. Type this on console protoc --python_out=. .\object_detection\protos\ YYYY .proto

what is YYYY..? it's the missing .py in \object_detection\protos... to know it check protos and _pb2.py if 1 of protos don't have match, change the YYYY* with that name ( example : I don't have _pb2.py match at anchor_generator.proto, so I type in console protoc --python_out=. .\object_detection\protos\anchor_generator.proto, and so all)

Answer 2

!protoc object_detection/protos/*.proto --python_out=.

Your pwd should be 'Tensorflow/models/research

Answer 3

It is because there is no fpn_b2.py file in the object_detection/protos folder. The protoc command given in the tutorial missed this.

You can run the following from research folder in anaconda prompt

protoc --python_out=. .\object_detection\protos\fpn.proto