ASP.NET MVC 4 getting error "Exception has been thrown by the target of an invocation" -

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i'm using composite keys in below model class of mvc , same thing.i did in ms sql server database having 2 columns both pk,fk getting error in initializesimplemembershipattribute class "exception has been thrown target of invocation" please me how create. model class

 [table("webpages_usersinroles")]     public partial class usersinroles     {         [column(order = 0)]         public int roleid { get; set; }         public virtual newroles roles { get; set; }          [column(order = 1)]         public int userid { get; set; }         public virtual userprofile userprofiles { get; set; }           }

why doing that? dont need define yourself. if use accountcontroller , if use websecurity role table created in simplemembershipinitializer filter. , need use built in functionality provided simplemembership provider.

in short, dont need define table imo reason having these problems.


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