Looks you have the correct hardware to run Intel Unite without any issues, however keep in mind that there is a BIOS update required to run the application and do not get that error message that you are getting. Can you please confirm what BIOS version your system has?
Please update to the latest BIOS available ( 0031) that will fix your problem. My recommendation is to contact the support team to get the BIOS updated.
If you need assistance please refer to this link BIOS Update Instructions for Intel® NUC .
The BIOS is available here: Download BIOS Update [DNKBLi5v.86A]