TF400898 error after upgrading to TFS 2015

Question

After upgrading TFS Express 2013 to 2015 I get the following error(s):

1) When trying to go to the tfs admin page

TF400898: An Internal Error Occurred.

2) In the event log:

Web Request Details
    Url: http://tfs.XXXXXX.com:8080/tfs/defaultcollection/Services/v3.0/LocationService.asmx [method: POST]
    User Agent: Team Foundation (devenv.exe, 14.0.23102.0, Pro, SKU:31)
    Headers: not available
    Path: /tfs/defaultcollection/Services/v3.0/LocationService.asmx
    Local Request: False
    Host Address: 76.XXX.XXX.115
    User: RR2014\sweaver [authentication type: NTLM]

Exception Message: The extension '.svc' is not registered with WCF/WF handler. Please either remove relativeAddress '~/ServiceManagement.svc' in 'system.serviceModel/serviceHostingEnvironment/serviceActivations' from configuration file or register the corresponding extension '.svc' with WCF/WF handler. Please refer to 'http://msdn.microsoft.com/en-us/library/bb515343.aspx' for how to register an extension in IIS. (type ConfigurationErrorsException)
Exception Stack Trace:    at System.ServiceModel.ServiceHostingEnvironment.HostingManager.NormalizedRelativeAddress(String relativeAddress)
   at System.ServiceModel.ServiceHostingEnvironment.HostingManager.LoadConfigParameters()
   at System.ServiceModel.ServiceHostingEnvironment.HostingManager..ctor()
   at System.ServiceModel.ServiceHostingEnvironment.EnsureInitialized()
   at System.ServiceModel.ServiceHostingEnvironment.OnEnsureInitialized(Object state)
   at System.ServiceModel.AspNetPartialTrustHelpers.PartialTrustInvoke(ContextCallback callback, Object state)
   at System.ServiceModel.ServiceHostingEnvironment.SafeEnsureInitialized()
   at System.ServiceModel.Activation.ServiceHttpModule.BeginProcessRequest(Object sender, EventArgs e, AsyncCallback cb, Object extraData)
   at System.Web.HttpApplication.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

3) In Visual Studio 2015 when trying to connect :

CData elements not valid at top level of an XML document. Line 1, position 3.

How can I fix it?

Answer 1

The only resource I could find related to this issue is an MSDN forums post.

I suspect that you tried to install Windows Server AppFabric, but have not configured it. If you are not using Windows Server AppFabric, you should uninstall/unconfigure it.

This comment was enlightening, but a little scary since I actually rely on AppFabric !!!

I am only however using the caching functionality and it turns out AppFabric has a whole Service Management Service that intercepts requests - or something to that effect. I wasn't using that.

I was able therefore to just uninstall the hosting components to fix the issue.

• Go Start > Programs and Features
• Select AppFabric 1.1 for Windows Server and click Change
• Deselect the Hosting Services

• Continue with Next to remove this component.

• You should now be able to run TFS without conflict with AppFabric.

If you're actually using the Hosting Services you probably already know more than I do about how it works so I hope you can take it from there to diagnose the problem. The original error message should give some direction then.