While I am setting User’s Profile below error occurs

Error: “The type initializer for 'DotNetNuke.Entities.Profile.ProfileController' threw an exception ”

Below is my scenario…

I have added reference of the “DoNetNuke.dll” to my class library, In one class I have created one function which will return list of UserInfo. Like below…

public static List<UserInfo> FillUserInfoCollection(SqlDataReader userinfo)

{

  List<UserInfo> lstobject = new List<UserInfo>();

  while (userinfo.Read())

  {

  UserInfo obj = new UserInfo();

  obj.IsSuperUser = false;

  obj.PortalID = 0;

  obj.UserID = int.Parse(userinfo["UserID"].ToString());

  obj.Username = userinfo["Username"].ToString();

  obj.Email = userinfo["Email"] != null ? userinfo["Email"].ToString() : string.Empty;

  obj.Profile.InitialiseProfile(obj.PortalID, true); [ERROR LINE]

  obj.Profile.SetProfileProperty("FirstName", userinfo["FirstName"].ToString());

  lstobject.Add(obj);

  }

  return lstobject;

}

 
I am getting above mentioned error , can anyone how to resolve that error?

Thanks,

Hitesh Panchal