Error in getting json format

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ASP.NET

C#5.0

JSON.NET

In the code , i m getting this error :
'System.Collections.Generic.KeyValuePair<string,object>' does not contain a definition for 'detail'

here is the code :
dynamic friendList = fb.Get("me/friends?fields=id,first_name,last_name,birthday,location,locale,age_range");
JsonObject mefriends = friendList;

foreach (dynamic friend in friendList)
{
foreach (dynamic detail in friend.detail ?? new[] {new{ id = new { id = string.Empty } }})
{
Response.Write("id: " + detail.id);

}

}



Please tell me why i m getting this error