The .model file is not being recognised by ngspice for simulation

The nghdl is creating the the circuit according to the .vhdl code but

only for my halfadder .vhdl design ghdl was invoked in ngspice but for my full adder .vhdl which i was testing, it is not getting recognised by ngspice and its says that .model is not recognised i don't know what i am doing wrong but i strongly feel that there is some problem with tool and there some issue which needs to be fixed

I even tried the already given nghdl example for the full adder .vhdl in esim folder but that also is showing the same error

I have spend 5 hours on this matter and still the tool won't work for just a simple full adder