The error you are getting is quite weird, which makes me think that perhaps you had installed a previous version of fuzzylite in your system and building your solution is performing the linkage to old libraries. For example, I find odd that executing fuzzylite.exe shows version 3.0 when the current version is v4.0.
Could you please make sure you:
- remove any previous version of fuzzylite from your system
- download fuzzylite version 4.0 from http://www.fuzzylite.com/downloads
- build again fuzzylite version 4.0 in your system
Please, let me know if this solves your issues.