Re: Fidel Lavigne Jr > Error message > > CXX network/fldigi-xmlrpc.o > > In file included from network/xmlrpc.cxx:80: > > ./include/confdialog.h:28:10: fatal error: FL/Fl_Tree.H: No such file or > directory > > 28 | #include <FL/Fl_Tree.H> apt-get build-dep fldigi apt-get source --build fldigi If that works, you need to check what's different in your attempt. Christoph DF7CB