So, here is the issue I encountered today. I have a solution that is using WCF service to communicate. My WCF service is hosted in a web site (web application project). I was getting error from my client, stating that connection was forcibly closed by the server. I could not figure out why even though I configured behavior to "includeExceptionDetailInFaults". So, here is the solution that I found.
I added the following to web.config file to web site that hosts WCF service.
initializeData= "c:Traces.svclog" />
Voila. I ran the process again, double-clicked on trace log that opened in a viewer. I was informed that I forgot to add Serializable attribute to my class I was sending across the wire.
What an easy solution! What a greate WCF feature as well – you can debug service even in production without changing code – just change configuration file. The same trick works in Windows hosted WCF services – just add the same stuff to app.config.