ASP.NET 4.5 object AdminBAL & ThrowError exception not recognize?
<p>When I type coding like this,</p>

<pre><code>void BindCurrentUsers() 
    { 
        AdminBAL admin = new AdminBAL(); 
        try 
        { 
            GridViewServer.DataSource = admin.LoadAll(); 
            GridViewServer.DataBind(); 
        } catch (Exception ee) 
        { 
            lblError.Text = ThrowError.LogAndThrowError(ee); 
        } 
        finally 
        { admin = null; } 
    }
</code></pre>

<p>The AdminBAL and ThrowError start having red underline which mean it not recognize. What do I miss?</p>
