Error "Unsupported schema version 185; expected schema version 184. Downgrade is not supported"

[shang...@gmail.com]

Hey team,

I am updating the gerrit from 3.6.6 to 3.7.6, when I tried to start the gerrit, I am encountering this error:

"1) Unsupported schema version 185; expected schema version 184. Downgrade is not supported"

is there any method to fix it, thanks a lot.

[Björn Pedersen]

As the message (and all release notes) says, you can not downgrade without replaying your backup.  But  I suspect you should just start with the correct gerrit.war, then there should not be a problem.

[Matthias Sohn]

3.6.6 uses schema version 184, 3.7.6 uses schema version 185.

Follow the release notes [1] for upgrade instructions.

[1] https://www.gerritcodereview.com/3.7.html#important-notes