Copy some actual Kickstarts into Devs:Kickstarts. The SKick package is only a set of support files for rekicking a different Kickstart into RAM.
Grab a 1.3 and a 3.1 Kickstart from one of your machines or Amiga Forever (AF ROMs will have to be decrypted by regrabbing them from within the emulation). The 1.3 image should be named kick34005.A500 and the 3.1 should be named kick40068.A1200 or kick40068.A4000, depending on what machine it's from.