BUG: chapter 6

[zhan4402]

loss = tf.reduce_mean(
tf.nn.nce_loss(nce_weights, nce_biases, embed, train_labels,
negative_samples, vocabulary_size))

This line returns the following error.
ValueError: Tensor conversion requested dtype int32 for Tensor with dtype float32: 'Tensor("nce_loss/Reshape_1:0", shape=(?, 1, ?), dtype=float32)'

[tomhoper]

@zhan4402 Please run the new code in the chapter 6 folder, and check it out again.