Devi cambiare il *
nella stringa di connessione per il nome dell'assembly in cui si trovano i file .edmx:
<add name="Entities" connectionString="metadata=res://*/Models.EF.Model.csdl|res://*/Models.EF.Model.ssdl|res://*/Models.EF.Model.msl;provider=System.Data.SqlClient;provider connection ... ;" providerName="System.Data.EntityClient" />
per
<add name="Entities" connectionString="metadata=res://Project2/Models.EF.Model.csdl|res://Project2/Models.EF.Model.ssdl|res://Project2/Models.EF.Model.msl;provider=System.Data.SqlClient;provider connection ... ;" providerName="System.Data.EntityClient" />