E-Business Suite 12.1.3 to 12.2.0 -- Quick Confirmation.
You appear to be on Chapter 5 (below) ??
Has the (Chapter 4) OnLine Patching steps been completed ??
E48839-15 Oracle E-Business Upgrade Guide Release 12.1 to 12.2
Chapter 1: PreParing for the Upgrade:
Download E-Business Suite 12.2.0 Media,
Chapter 2: Planning for the Upgrade:
Apply PreUpgrade DBTier TechStack Patches
AppsTier TechStack Patches
Chapter 3: Upgrade E-Business Suite From 12.1. To 12.2.0
Chapter 4: Oracle E-Business Suite OnLine Patching 12.2.0 Utility
Chapter 5: Oracle E-Business Suite 12.2.0 Post Upgrade Tasks
Chapter 6: Upgrading E-Business Suite From 12.2.0. To 12.2.6
We upgrade again and its working