I have downloaded the Tin source code. Looks like "SINGFileUtils.h" is missing ??
Its included in FileEdge.cpp:
Let me know if I missed something.
You are correct; the file is missing. The file was never cleared for release into open source. The missing class used in FileEdge.cpp is called SINGLIB::FileXferBytes. I recommend simply building the functionality it supplies from scratch. The intent of the class should be obvious, but please don’t hesitate to ask if you have questions.