Tensor is not an element of this graph

Question

I\'m getting this error

\'ValueError: Tensor Tensor(\"Placeholder:0\", shape=(1, 1), dtype=int32) is not an element of this graph.\'

Answer 1

I had this issue when trying to make a model using another class that uses keras to create a model. I got this issue corrected by doing the following

import nn_classifierclass as cls
from keras import backend
for repeat in range(repeats):
    backend.clear_session() ##NOTICE THIS
    neural_net = cls.Classifier(.....)
    neural_net.keras_fcn_classifier()