db2dart报错，请大神指导！？

Unable to determine pool relative page number for obj rel page 0 (Obj ID:787, Pool ID:3) due to rc 0x870F0009
Error: Unable to read pool page 3331794208, object page 0, from pool 3, due to rc 0x870F0009
Error: parent pool 3, object ID 787, object type Data.
Error: extent map anchor page of object is 1141888.
Error: Unable to get table descriptor record.
Error: This phase encountered an error and did not complete.
Table object data formatting end.