score:-1

you can use tensorflow version 1.14.0 by install this command

!pip install 'tensorflow==1.14.0'

and then restart runtime

make sure use tensor-flow version is 1.14 by run this command 

import tensorflow

print(tensorflow.__version__)

score:0

After pip3 install -r drive/mrcnn/Mask_RCNN-master/requirements.txt, you can use !pip3 install 'tensorflow==1.14.0' and then restart runtime.