ValueError: Variable RNN/MultiRNNCell/Cell0/BasicLSTMCell/Linear/Matrix does not exist, disallowed.

ValueError: Variable RNN/MultiRNNCell/Cell0/BasicLSTMCell/Linear/Matrix does not exist, disallowed. Did you mean to set reuse=None in VarScope?  

問題原因：Jupyter中運行多次cell時，默認在已存在的計算圖上進行相同的操作

解決方法如下：

在代碼上端加with tf.Graph().as_default()：

例如：

with tf.Graph().as_default():
    # tf Graph input  
    x = tf.placeholder(tf.float32, [None, n_steps, n_inputs])  
    y = tf.placeholder(tf.float32, [None, n_classes])