Description of problem:

Failed to upgrade rhevm-reports-3.5.x to rhevm-reports-3.6.x

[ INFO  ] Cleaning async tasks and compensations
[ INFO  ] Unlocking existing entities
[ INFO  ] Checking the Engine database consistency
[ INFO  ] Stage: Transaction setup
[ INFO  ] Stopping dwh service
[ INFO  ] Stopping reports service
[ INFO  ] Stopping engine service
[ INFO  ] Stopping ovirt-fence-kdump-listener service
[ INFO  ] Stopping websocket-proxy service
[ INFO  ] Stage: Misc configuration
[ INFO  ] Regenerating Jasper's build configuration files
[ INFO  ] Exporting data out of Jasper
[ ERROR ] Failed to execute stage 'Misc configuration': Command './js-export.sh' failed to execute
[ INFO  ] Yum Performing yum transaction rollback
[ INFO  ] Stage: Clean up
          Log file is located at /var/log/ovirt-engine/setup/ovirt-engine-setup-20151208175005-p5xtuv.log
[ INFO  ] Generating answer file '/var/lib/ovirt-engine/setup/answers/20151208180000-setup.conf'
[ INFO  ] Stage: Pre-termination
[ INFO  ] Stage: Termination
[ ERROR ] Execution of setup failed


Version-Release number of selected component (if applicable):
From: rhevm-reports-3.5.5-2.el6ev.noarch
To: rhevm-reports-setup-3.6.1-1.el6ev.noarch


How reproducible:
100%


Steps to Reproduce:
1. Install RHEV 3.5 with rhevm-reports-3.5.5-2.el6ev.noarch
2. Run engine-config and setup the system
3. Add RHEV 3.6 repos and yum update
4. Run engine-config and trigger the upgrade

Actual results:
rhevm-reports upgrade fails on:
[ ERROR ] Failed to execute stage 'Misc configuration': Command './js-export.sh' failed to execute


Expected results:
rhevm-reports upgrade should succeed  


Additional info:

Caused by: org.postgresql.util.PSQLException: ERROR: relation "jidashboardmodel" does not exist