Oracle Message ORA-25190 - an index-organized table maintenance operation may not be combined with other operations

ERROR	an index-organized table maintenance operation may not be combined with other operations
CAUSE	ALTER TABLE statement attempted to combine an index-organized table maintenance operation (e.g. changing physical attributes) with some other operation (e.g. ADD constraint) which is illegal
ACTION	Ensure that a index-organized table maintenance operation is the sole operation specified in ALTER TABLE statement;