ID:19934 Partition '<partition_parent>' cannot use a PRESERVE assignment because its child partition '<partition_child>' is imported as a Partition Database File. To fix this error, remove the preservation setting on partition '<partition_parent>' or remove the Partition Database File (QDB_FILE_PARTITION assignment) on child partition '<partition_child>'.

CAUSE: A partition has a QDB_FILE_PARTITION assignment, while it's parent partition has a PRESERVE assignment.

ACTION: Remove either the QDB_FILE_PARTITION assignment of the child partition or the PRESERVE assignment of the parent partition in the Quartus Setting File.