Serial Port - qextserialport (Windows) crash

[h-n-s]

Do you think that sharing the error message and some details about how it "has crashed" might help?

program starts ... program crashes without giving any error

Firsy of all use current version of qextserialport. You are using alpha version. This is not good idea.

I tried but I did not want to build ... ( .../bin/ld.exe: <unknown-file>:0: syntax error)