Hi Vinaya,
You don’t have the required solvers for this example. You will need to acquire two solvers, Mode and Interconnect. Mode is used for waveguide and coupler design, while Interconnect simulates photonic integrated circuits.
Regarding Mode: https://www.ansys.com/products/photonics/mode
Regarding Interconnect: https://www.ansys.com/products/photonics/interconnect