Application Express :: Source Of Interactive Report

I have an error why trying to update the source of my interactive report the error is : 1 error has occurred

The report query needs a unique key to identify each row. The supplied key cannot be used for this query. Please edit the report attributes to define a unique key column. ORA-01446: cannot select ROWID from, or sample, a view with DISTINCT, GROUP BY, etc.

The SQL query is :

select l.code_lignebip, m.identifiant_mission, m.libelle_mission, SUM(b.nbr_jours),
SUM(c.nbr_jours_consome), c.nbr_jours_realise, c.nbr_jours_raf, c.nbr_jours_reestime, c.lundi, c.mardi, c.mercredi, c.jeudi, c.vendredi
FROM missions m, bip l, cra c, budgets b
[code]....