You must import the datastores prior to importing the customized ETL tasks.
Note:
The following steps are implemented in the DEV repository only. For migrating changes to TEST and PROD repositories, refer to BI Applications 11.1.1.7.1 – Migrating Configurations and Customizations from Development to a Test OR Production Environment, My Oracle Support Document 1587872.1The upgrade datastores will now be merged with the pre-upgrade customizations.