Hello,<br>First sorry for my bad english<br>I have a problem when I execute this code<br><br>r<span style="font-weight: bold;">ule "userrole"</span><br style="font-weight: bold;"><span style="font-weight: bold;">when</span><br style="font-weight: bold;"><span style="font-weight: bold;"> user1: BnUserValue(name : name, creationDate : creationDate)</span><br style="font-weight: bold;"><span style="font-weight: bold;"> and</span><br style="font-weight: bold;"><span style="font-weight: bold;"> ActiviteOut : BnNodeValue( <span style="text-decoration: underline;">BnRole: BnRole</span> )</span><br style="font-weight: bold;"><span style="font-weight: bold;"> and </span><br style="font-weight: bold;"><span style="font-weight: bold;"> lien: BnEdgeValue(id : id)</span><br style="font-weight: bold;"><span style="font-weight: bold;">then</span><br style="font-weight: bold;"><span style="font-weight: bold;"> System.out.println("oui ça
marche");<br>end<br><br></span> BnRole is attribut type ; BnRoleValue (class declared)<br>when I remote this attribue(BnRole) this code work <br>all the attribut which I set with type different to classique type (String, Integer, Date, List,... ) implique an error execution I don't know why I import all my class and I'm sure that class haven't error<br>thank you for your help<br>Best regards<br>Ismail<br><span style="font-weight: bold;"></span><p> 
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