I just installed vRO 6.0.4 in my environment (vSphere 6, SRM 6.1, VR 6.1 - plugins for both installed). I connected it to SSO (using my administrator@vsphere.local account) successfully, added the vCenter from the vRO client and I can see all the workflows in vRO when I go thru the vSphere web client. However, when I click on any workflow I get a blank grey window with the error in the title of this message.
Any help would be greatly appreciated.