Configuring the Object Detection API on Windows is a tricky task. You will find the answer in the following links.

https://www.cnblogs.com/jqpy1994/p/11334207.html

https://blog.csdn.net/qq_36735489/article/details/80948148

https://www.wandouip.com/t5i324530/

http://www.programmersought.com/article/9501352446/

Object Detection API error: “ImportError: cannot import name anchor_generator_pb2”