If you believe that VIVO contains data, but you can't find any, you may very well have a problem with Solr.

In progress.

See also: In Site Administrator Guide, the section on "Troubleshooting Tips"

Signs of a possible Solr-related problem

Smoke tests
- Immediate failures
- Separate thread, since Solr may start after VIVO
  - Go to the status page. Do you see a successful completion?
    - If not, wait (how long)?
No content
- Confirm that this is a Solr problem by navigating through VIVO and finding content.
Others?

Is Solr working properly?

Check the admin console.
See the fields
See the contents?
Look in the Solr log

Does it help to rebuild?

Really clean
- Solr home directory
- Tomcat/webapps, Tomcat/work, Tomcat/conf
- ant clean deploy (or ant all)

Is the communication working?

Check the VIVO log?
Check the deploy.properties (both in the log and in the file)

(Recap: look through all of the steps with Mark Ludwig)