must name this expression with a column alias

Hvad laver jeg fejl her

Når jeg prøver at lave det her view

drop view antalVarePaLagere;

create view antalvarePaLagere as select varenr ,(SELECT SUM(qoh) as qohlager from lager la, vare va where va.varenr=la.varenr),
(SELECT SUM(qoh) as speqoh FROM  speditorlager spe, vare va where va.varenr=spe.varenr),
(SELECT SUM(la.qoh+spe.qoh) as qohalle From lager la, leverandorlagerindhold levlag, speditorlager spe, vare va where va.varenr=spe.varenr AND va.varenr=levlag.varenr AND va.varenr=la.varenr)
FROM vare va
ORDER BY varenr;

Får jeg denne her fejl

ERROR at line 1:
ORA-00998: must name this expression with a column alias