Web interface Page Cannot Be Found after upgrade from 10250 to 12200

Web interface Page Cannot Be Found after upgrade from 10250 to 12200

Hi all,
I've just upgraded from build 10250 to 12200 and now have a broken web interface.

Running on Linux and all the server side of things seem to start ok but after login via web browser I get taken to:-

/netflow/jspui/NetworkSnapShot.jsp

Which brings up a Page Not Found error in the web browser.

Any suggestions?

Cheers

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