You attempted to perform a list operation on an item, but you did not specify an item. For example, if you attempted to add a PL/SQL library to your report's Attached PL/SQL Library list, but you left the PL/SQL Library field in the Attached PL/SQL Libraries dialog box blank and chose the Add button, you would receive this error.
Action:
Specify the item you wish to add in the appropriate field before choosing a button.
Note: For help on other error messages, see Finding error message help.
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