shape '[16]' is invalid for input of size 64

This error message indicates that the shape of the input tensor is not compatible with the expected shape. In this case, the input tensor has a shape of [64], but the model expects a shape of [16].

To resolve this issue, you need to reshape the input tensor to the correct shape. You can use the reshape() function from the NumPy library to reshape the input tensor. For example:

import numpy as np

# Assume X is the input tensor with shape [64]
X = np.random.randn(64)

# Reshape X to [16]
X = X.reshape((16, 4))

In this example, we reshape the input tensor X to have a shape of [16, 4]. This will enable us to pass X to the model without getting the "shape '[16]' is invalid for input of size 64" error message. Note that the reshape function can be used to reshape a tensor to any compatible shape, as long as the total number of elements remains the same.