## Friday, 31 December 2010

### WCF fully qualified type gotcha

It got me again, so I'm blogging it in the hope that I remember next time! When specifying fully qualified type names in .NET configuration files make sure to put a space after the comma that separates the parts(highlighted in yellow below).
` <extensions> <behaviorExtensions> <add name="federatedServiceHostConfiguration" type="Microsoft.IdentityModel.Configuration.ConfigureServiceHostBehaviorExtensionElement, Microsoft.IdentityModel, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/> </behaviorExtensions> </extensions></pre></code>`