恢复数据库给出错误

Question

当我尝试恢复数据库备份时，出现以下错误。

pg_restore: [archiver (db)] Error while PROCESSING TOC:
pg_restore: [archiver (db)] Error from TOC entry 214; 1259 32064 TABLE country_amd0 userldd
pg_restore: [archiver (db)] could not execute query: ERROR:  role "userldd" does not exist
    Command was: ALTER TABLE country_amd0 OWNER TO userldd;

有人知道这个错误是什么吗？

谢谢。