Symptoms

When trying to view a revision from a Crucible review or a Source tab in JIRA, the following message is presented on screen:

  Received status code 404 (Not Found)

And in the Fisheye/Crucible logs:

 2012-12-18 14:31:26,969 INFO  - 404: FishEye is not enabled referer=null

Cause

Only a Crucible license is present. There is no license for Fisheye, hence it is not available.

Resolution

Generate a Fisheye license at http://my.atlassian.com and apply to Fisheye/Crucible under Administration > System Settings > System Info > Edit License.