Error when trying to train num_layer > 1 about neuraldialog-cvae HOT 2 CLOSED

    @staticmethod
    def get_rnncell(cell_type, cell_size, keep_prob, num_layer):
        cells = []
        for _ in range(num_layer):
            if cell_type == "gru":
                cell = rnn_cell.GRUCell(cell_size)
            else:
                cell = rnn_cell.LSTMCell(cell_size, use_peepholes=False, forget_bias=1.0)

            if keep_prob < 1.0:
                cell = rnn_cell.DropoutWrapper(cell, output_keep_prob=keep_prob)

            cells.append(cell)

        if num_layer > 1:
            cell = rnn_cell.MultiRNNCell(cells, state_is_tuple=True)
        else:
            cell = cells[0]

        return cell