title: WCF Services on shared hosting (This collection already contains an address with scheme http.)
body: <p>When trying to call a WCF service I receive the following error:</p>
  
  <pre><code>This collection already contains an address with scheme http.  There can be at most one address per scheme in this collection. 
  Parameter name: item
  </code></pre>
  
  <p>The Goog tells me that the solution is as follows (when using .net 3.5, which I am):</p>
  
  <pre><code>  &lt;baseAddressPrefixFilters&gt; 
      &lt;add prefix="http://mydomain.com.au"/&gt; 
    &lt;/baseAddressPrefixFilters&gt; 
  </code></pre>
  
  <p>However, when I try to add this to the  section of my web.config it tells me it is invalid.</p>