There is a fun bug with version 126.96.36.199 ... (or its me?.. :cathappy: )
In version 188.8.131.52, it was possible to update Hypervisor via PRISM UI (with version 5.5u2), but in version 184.108.40.206, its not possible :(see below)
Thks guys !
Best answer by DonnieBrasco
It is giving you this error because json file which you have uploaded doesn't have NOS version 220.127.116.11 added in supported NOS version list.
The reason for that is NOS version was released after that json file was created. You can edit the json file and add nos version 18.104.22.168 and it should work.
Hope it helps.