WCF Service: How to find server logs to understand error?

Question

I know this is probably a pretty basic question but I am brand new to WCF and Service creation. I am running a local hosted WCF service using Microsoft VS 2010 C#4. I am trying to run the service through the URL through simple binding and running the PUT and GET methods through the URL. I am getting the:

. See server logs for more details.

error when I try to make a service request. How can I find these server logs?

Answer 1

Logging is not necessarily turned on. Tracing and logging need to be enabled in WCF configuration (app.config or web.config). You can do this manually, or by clicking app.config and then selecting Edit WCF Configuration. If this item doesnt appear in context menu (happens in old versions of VS), you can find it in VS Tools menu or by running it manually (SvcConfigEditor.exe).

By default, messages are logged to files in directory from which application is ran. You can edit this in configuration editor once you enable logging. Editor will allow you to specify file path once you enable logging or tracing.

You can later use Microsoft Service Trace Viewer tool for going through the files, as large XMLs and are not user friendly. Viewer tool should come up itself once you double click log files, or you can run it manually (SvcTraceViewer.exe).

Answer 2

Add this to your web.config. you specify where the log goes in the initializeData attribute of the tracelistener

<system.serviceModel>
    <diagnostics>
        <messageLogging logEntireMessage="true" logMalformedMessages="true" logMessagesAtServiceLevel="true" logMessagesAtTransportLevel="true" />
    </diagnostics>
</system.serviceModel>
<system.diagnostics>
    <sources>
        <source name="System.ServiceModel" switchValue="Information, ActivityTracing" propagateActivity="true">
            <listeners>
                <add name="traceListener" type="System.Diagnostics.XmlWriterTraceListener" initializeData="C:\Temp\SvcLog\Traces.svclog" />
            </listeners>
        </source>
    </sources>
</system.diagnostics>