Upgrade from otk from version 4.4.0 to version 4.6.0 failed.
Encountered an error: “The mapping requires the property ‘SK_AllowMappingOverride’ be set to true by the .skar file author”
Release : API Gateway 10.1
During OTK upgrade, there were 3 encapsulated assertions within Portal Persistence Layer: MySQL or Oracle which were not getting deleted.
Manually delete these 3 encapsulated assertions from "Manage encapsulated assertions" and delete the policies from the palette.
Re-run install/upgrade OTK to 4.6 .