Diagnosis
An error occurred when attempting to extract a list of existing elementsfor the specified UD Connect source object.

Procedure
This error can have the following causes:
The access data (URL, user, pasword, database etc.) that you specifiedwhen installing the corresponding BI Java Connectors is eitherincomplete or incorrect.
Check the access data and verify it. Also ensure that the user accountyou are using for access has the necessary authorizations for thisoperation.
The UD Connect Java Beans have not been completely installed .
Check whether UD Connect Java Beans are installed completely. Completethe installation if necessary.