Using the external modes of Simulink real-time and r2018b, does the C S-function contained in the model need the corresponding TLC file when compile model?

Using the external modes of Simulink real-time and r2018b/VS 2017,

does the C S-function contained in the model need the corresponding TLC file when Build model?

If necessary, for an existing C S-function, how to get its TLC file quickly?

The reason for this is that when the model was compiled, there was an error that the. Obj file could not be found, but there was no hint that TLC was required.

Error recurrence：https://github.com/sanluoruge/FAST_COMPILE.git

Please try to help me, thank you very much.

[Fangjun Jiang]

If you have the .c source code for the S-function, no .tlc file is needed. What is the error message?