The element 'behavior' has invalid child element 'myFaultExtension' in wcf app.config
问题 I'm trying to catch regular exceptions from a WCF service in a Silverlight client application. For that I've included the respective changes in my WCF service as given in this MSDN article. But when I configure the behavior extension and use the same in endpoint behavior, the error mentioned above is coming up, and the service is not able to run due to this error. I am putting here my configuration. Kindly suggest how can I solve this? <extensions> <!--Add a behavior extension within the