While processing an ALTER TABLE ADD COLUMN statement, table-level attributes of LOB columns were encountered after processing partition-level attributes of LOB columns or while processing CREATE TABLE statement, table-level attributes of LOB columns were encountered after processing partition descriptions.
Ensure that the block sizes of corresponding pairs of LOB columns of the tables involved in the ALTER TABLE EXCHANGE [SUB]PARTITION statement are the same.
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/e12700.htm
https://community.oracle.com/message/3229900
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