C# Error 'No overload for method 'getData' takes '1' arguments
<p>I am getting the following error:</p>

<pre><code>Error 49 No overload for method 'getData' takes '1' arguments
</code></pre>

<p>With this method on the 5th line.</p>

<pre><code>    [WebMethod]
    public string getVerzekerde(int bsn)
    {
        ZDFKoppeling koppeling = new ZDFKoppeling();
        return koppeling.getData(bsn);             
    }
</code></pre>

<p>The getData method looks like this:</p>

<pre><code>    public string getData(int bsn)
    {         
        using (new SessionScope())
        {
            ZorgVerzekerde verzekerde = PolisModule.GetVerzekerde(bsn);
            return "Verzekerde " + verzekerde.Naam;          
        }     
    }
</code></pre>

<p>I realy don't understand what is going wrong here.. The description of this error on the msdn site didn't help me.. http://msdn.microsoft.com/en-us/library/d9s6x486%28VS.80%29.aspx</p>

<p>Someone who has a solution?</p>
