Server can't be installed on "Server HD" because the version of OS X is too new

Question

I'm attempting to install OS X Server 2.2.4 (Released 9/24/2014) on my Mac Mini Server (Late 2012). I'm receiving this message: We could not complete your update Server can’t be installed on “Server HD” because the version of OS X is too new
Current software OS X 10.9.5 (13F34)
4 GB 1600 MHZ DDR3
Processor 2.6 GHz Intel Core i7
I'd like to resolve the conflict and install the update. 

Answer 1

domenico_85 wrote:
Hi All,
I am in the same situation.
I updated to Maverick 10.9.5, rebooted the system, in App Store updates I get OS X Server to be updated to 2.2.4, but I can't because the os x version is too new.
If I search OS X Server in App Store I can see the latest version 3.1.2 not as update, I should by the new software 13.99£, why?
Is there a workaround about this?
This question gets asked pretty regularly, and does seem to be a longstanding bit of confusion with the OS X Server product packaging.
OS X Server is not a "permanent" purchase that'll upgrade and work across all new "major" OS X versions "forever". 
If there's a new "cat" or a new "bit of California" (e.g. Mavericks, Yosemite) being advertised with OS X, expect there to be a new Server.app purchase to go with that upgrade.
The organization and underpinning of OS X move around occasionally (usually with these new "major" releases), which means Server.app also gets reworked.
In other words, roll in your backups and revert to the older OS X version and the older Server.app, or purchase the newer version of Server.app.  (Having started out when OS X Server was a US$1000 purchase, paying the current prices for a newer version of Server.app is rather easier to get past the purchasing department.)