Hi all,
we tried to upgrade arcgis server 10.6.1 to 10.8.1. we started from the portal, as recommended
but after running the portal, we tried to reauthorize, but this error pops up:
The existing portal could not be upgraded directly from 10.2 to 10.8.1. Upgrades from 10.2 are no longer supported.
that is very weird, because our current arcgis server is 10.6.1 not 10.2. so I have no idea why this error show up.
the os we use is windows server.