As I'm not interested in xlsx filter, I commented out the offending code and succeeded in compiling and installing.
By the way, it seems that the new version doesn't answer my original question, i.e. is there a way to save/load the report in a file so that it can be distributed along with the executable and not embedded in the executable.
R: it is not possible the report file is embedded in the executable.
Furthermore, I've found the barcode's rendering is worse and RLReport1. Preview (); raises an exception.
R: Please report this problem in the github project.
Lastly, the best code without documentation is useful only to those who wrote it:-[
I have a file of help than this at the address below:
https://www.dropbox.com/s/axewi0gla289fu1/fortes.7z?dl=0