问题在于输入数据和输入形状之间.

The problem is between your input data and your input shape.

• 你在模型中说你的输入形状是 (12,1) (= batch_shape=(None,12,1))
• 但是您的数据 X_train_t 具有 (1,64,1) 形状.

• You said in the model that your input shape is (12,1) (= batch_shape=(None,12,1))
• But your data X_train_t has shape (1,64,1).

要么修复模型的输入形状，要么修复数据(如果这不是预期的形状).

Either you fix the input shape of the model, or you fix your data if this is not the expected shape.

对于可变长度/时间步长，您可以使用 input_shape=(None,1).

For variable lengths/timesteps, you can use input_shape=(None,1).

第二层不需要 input_shape.

You don't need an input_shape in the second layer.