Upgrade to '3.0.0' <= <version> < '3.2.0' first.

[Guido Sicoli]

After upgrading JIRA.. I went to Applications and upgraded Service Desk.

and now I have this error message.

2017-10-19 16:44:56,098 JIRA-Bootstrap ERROR      [c.a.s.b.lifecycle.server.ServerPluginLifeCycle] '2.5.9' version of Service Desk cannot be upgraded to '3.8.2-REL-0016'. Upgrade to '3.0.0' <= <version> < '3.2.0' first.

[Gregory Van Den Ham]

Appears to be asking you to step upgrade from 2.5.9 to 3.0 and move up from there.

What version of Jira & Service desk is listed now in administration under applications?

[Guido Sicoli]

RA Service Desk  3.8.2

JIRA Software 7.5.1

JIRA Core 7.5.1

[Avinash Singh]

I have the same problem. Can we just do the incremental service desk installs or do we have to downgrade jira? 

[Nic Brough -Adaptavist-]

There is no such thing as "downgrade Jira"

For each upgrade step of your Jira, install/upgrade all the add-ons and applications in step with the Jira upgrade.