[SOLVED] Installing El Capitan - A Required Download Is Missing?

[mikehende]

Hey guys, I am attempting to install El Capitan OS X on a 2014 Mac mini, it shows that the unit was originally 10.10 [Yosemite]. I erased the drive then proceeded to install El Capitan but it it is showing "A required download is missing", help please?

 

[rgd1101]

sound like unsupported hardware.