TensorFlow problem

linear_est = tf.estimator.LinearClassifier(feature_columns=feature_columns)

linear_est.train(train_input_fn)

I am facing problem while following freecodecamp tutorial on TensorFlow.

while running the 2nd line of code, to train the dataset, it shows an error stating

“InvalidArgumentError: Graph execution error:Detected at node ‘IteratorGetNext’”

Any help will be appreciated

I encountered no problem when I ran all cells of that tutorial notebook…