I just installed Dspace 6 and I'm getting this error message when I launch a webapp. I emailed helix84 off-list (sorry about that!) and he responded that it is a database problem.
He said that: "Both error messages indicate some unexpected problem with the database. > java.lang.NullPointerException > at org.dspace.core.AbstractHibernateDAO.getHibernateSession(AbstractHibernateDAO.java:48) https://github.com/DSpace/DSpace/blob/dspace-6.0/dspace-api/src/main/java/org/dspace/core/AbstractHibernateDAO.java#L48 > java.lang.IllegalArgumentException: Required metadata field 'dc.title' doesn't exist! > at org.dspace.content.CommunityServiceImpl.findAllTop(CommunityServiceImpl.java:166) https://github.com/DSpace/DSpace/tree/dspace-6.0/dspace-api/src/main/java/org/dspace/content/CommunityServiceImpl.java#L166 " I ran both /dspace/bin/dspace database test /dspace/bin/dspace database info and it didn't display any errors. BTW, I couldn't get Dspace to work at all with Tomcat7 or Tomcat8. I eventually tried Jetty9 and that worked. Any ideas? -- You received this message because you are subscribed to the Google Groups "DSpace Technical Support" group. To unsubscribe from this group and stop receiving emails from it, send an email to dspace-tech+unsubscr...@googlegroups.com. To post to this group, send email to dspace-tech@googlegroups.com. Visit this group at https://groups.google.com/group/dspace-tech. For more options, visit https://groups.google.com/d/optout.