Tensorflow ValueError: No variables to save from

Question

I have written a tensorflow CNN and it is already trained. I wish to restore it to run it on a few samples but unfortunately its spitting out:

ValueEr

Answer 1

Simply, there should be at least one tf.variable that is defined before you create your saver object.

You can get the above code running by adding the following line of code before the saver object definition.

The code that you need to add has come between the two ###.

import tensorflow as tf

import main
import Process
import Input

eval_dir = "/Users/Zanhuang/Desktop/NNP/model.ckpt-30"
checkpoint_dir = "/Users/Zanhuang/Desktop/NNP/checkpoint"

init_op = tf.initialize_all_variables()

### Here Comes the fake variable that makes defining a saver object possible.
_ = tf.Variable(initial_value='fake_variable')

###
saver = tf.train.Saver()
...