[ovirt-users]Re: oVirt Administration Portal will not load after upgrade to 4.5.7

Is it possible that your engine-setup did not complete succesfully? The new MigrationPolicies for 4.8 were added in the commit https://github.com/oVirt/ovirt-engine/commit/90e688b33b12. On correct population of the database these values should be present, it seems your DB is still running with older data.