The Sifflet visual functional programming language and aid to understanding recursive functions (http://mypage.iu.edu/~gdweber/software/sifflet/home.html)

#51Cannot open saved files in Windows

2013 July 15. In Windows (only!), Sifflet cannot open a file in which it has saved function definitions. An "Error" dialog box appears, saying "file format error". In the shell from which sifflet.exe was launched, a message of this sort appears:

fatal error: unsupported protocol in URI "C:\\MinGW\\msys\\1.0\\home\\gdweber\\src\\sifflet\\joe.sfl