Oracle Error Message
ORA-39148: unable to import data into pre-existing queue table string. Table_exists_action of string being ignored for this table
Reason for the Error
A Data Pump import detected that a queue table that was to be imported already exists. Importing data into pre-existing queue tables is not supported.
Solution
If the data from the dump file is desired, then drop the queue table and perform the import again, or use the import parameter table_exists_action=replace.