Macmini6,1 uses i5 processor and Macmini6,2 uses i7. Unfortunately, MultiBeast/macmini6,1 is actually the 6,2 smbios.plist (bug reported). No error is reported with ./ssdtPRGen.sh i5-3770K and macmini6,2. When a macmini6,1 smbios.plist is avialable, run the script again and no error will be reported. The important point is the SSDT_PR.dsl is the same in both cases and delivers the same performance with either System Definition.
IB System Definitions:
i5 - macmini6,1, imac13,1, macbookpro9,2, macbookpro10,2, macbookair5,1
i7 - macmini6,2, imac13,2, macbookpro9,1, macbookpro10,1