[求助]：大家来看看这个问题该怎么解决？

黄玮

AcDbBlockTable *pThisBlockTable;
        acdbHostApplicationServices()->workingDatabase()->getSymbolTable(pThisBlockTable,
                AcDb::kForWrite);
        AcDbBlockTableRecord *pOtherBtr;
        pThisBlockTable->getAt(ACDB_MODEL_SPACE,pOtherBtr,AcDb::kForWrite);
        pThisBlockTable->close();
    AcDbBlockTableRecordIterator *pOIter;
        pOtherBtr->newIterator(pOIter);
    AcDbObjectIdArray objIdArray;
        for(pOIter->start();!pOIter->done();pOIter->step())
        {
                AcDbEntity *ent;
        pOIter->getEntity(ent,AcDb::kForRead);
                if(ent->colorIndex()==100||ent->colorIndex()==200)
                        objIdArray.append(ent->objectId());
                ent->close();
        }
        delete pOIter;
    pOtherBtr->close();
    AcDbBlockTableRecord *pBTableRec=new AcDbBlockTableRecord();
        pBTableRec->setName("ASDK_NEW");
        AcDbObjectId blockId;
        AcDbIdMapping iMap;
        AcDbBlockTable *pBtable=NULL;
        pBtable->add(pBTableRec);
        pBtable->getAt("ASDK_NEW",blockId);
        pBtable->close();
    acdbHostApplicationServices()->workingDatabase()->deepCloneObjects(objIdArray,blockId,iMap);

我想把当前块表中颜色索引为100和200的实体拷贝到另外一个块表中，怎么运行到pBtable->add(pBTableRec);根pBtable->getAt("ASDK_NEW",blockId);这里的时候就出现问题，这个应该怎么改啊？