Keras + tensorflow gives the error “no attribute 'control_flow_ops'”

Question

I am trying to run keras for the first time. I installed the modules with:

pip install keras --user
pip install tensorflow --user

and then

Answer 1

I got this problem when it turns out keras was using the Theano backend. To fix it do one of these:

• In ~/.keras/keras.json set "backend": "tensorflow".
• Set the environment variable KERAS_BACKEND to tensorflow.

See Keras backend documentation for more information.