ValueError: Input 0 of layer sequential_32 is incompatible with the layer: : expected min_ndim=3, found ndim=2. Full shape received: [None, 256]

Question

I am building a Conv1D model with train data (28659, 257) and test data (5053, 257), but I am facing a value error that says: expected min_ndim=3, found ndim=2. Full shape r