Why Am I Getting This Valueerror?

So here is my code for a full understanding: https://hastebin.com/qigimomika.py . So basically I have a problem with the following lines: a bit context: def weight_variable(shape):

Solution 1:

Here we are since you know MatMul operations is classic Matrix Multiplication operation so if we want to multiply two matrices, M1 and M2, with shape AxB and BxC respectively, we should have same shapes B when we want to multiplication and in result:

M1 x M2 results in a matrix R with shape AxC.

So in your case you try to multiplication two matrices with shape 4x1 and 4x32, so it throws an error of shape problem, you should transpose the first tensor, then you have:

1x4 MatMul 4x32 result in 1x32 matrix.

Your code here:

h_layer1 = tensorflow.add(tensorflow.matmul(input_layer, w_layer1),b_layer1)

Use like this:

h_layer1 = tensorflow.add(tensorflow.matmul(tf.transpose(input_layer), w_layer1),b_layer1)

For more detailed answer, you can print the shapes of tensors in each stage like:

print h_layer1.get_shape()

And see the shapes, then you can modify your shapes and inputs.

Good Luck.