Generate embedded code from simulink while indicating .tlc file is missing

To whom it may concern,

I have built up my modeling in Simulink, with several S-function written with M file Level 2.

I tried to build model, however indicating the S-function is missing .tlc file.

Is there any chance we can auto generate .tlc file based on a M file Level 2? Or any easy way we can create the .tlc file in a lighter burden?

Many thanks,

Yang Liu