ValueError: not enough values to unpack (expected 2, got 0)

[gnana997]

Traceback (most recent call last):
File "twitter-sentiment-cnn.py", line 147, in
x, y, vocabulary, vocabulary_inv = load_data(FLAGS.reduced_dataset)
File "C:\Users\gnana\Desktop\twitter-sentiment-cnn\data_helpers.py", line 166, in load_data
vocabulary, vocabulary_inv = build_vocab()
File "C:\Users\gnana\Desktop\twitter-sentiment-cnn\data_helpers.py", line 119, in build_vocab
vocabulary = {x:i for x, i in voc}
File "C:\Users\gnana\Desktop\twitter-sentiment-cnn\data_helpers.py", line 119, in
vocabulary = {x:i for x, i in voc}
ValueError: not enough values to unpack (expected 2, got 0)

[danielegrattarola]

Can you give me a little more details on how to reproduce this?
By looking at the stack trace it's probably a setup error, make sure to follow the installation instructions in the README.

[shineangelic]

I could solve this removing blank lines in vocab.csv and vocab_inv.csv