Invalid URI: The format of the URI could not be determined

So, here's another one I was encountered with: Invalid URI: The format of the URI could not be determined

Its a 2003 server running IIS 6.0

Event code: 3005 

Event message: An unhandled exception has occurred. 

Event time: 9/13/2012 1:38:13 PM 

Event time (UTC): 9/13/2012 5:38:13 PM 

Event ID: 00f54b7251484446b49b7d508a57a23b 

Event sequence: 3 

Event occurrence: 1 

Event detail code: 0 

Application information: 

Application domain: /LM/W3SVC/1/Root/PGC-1-129920314485468750 

Trust level: Full 

Application Virtual Path: /PGC 

Application Path: C:\Inetpub\wwwroot\PGC\ 

Machine name: SYSENG2 

Process information: 

Process ID: 1136 

Process name: w3wp.exe 

Account name: NT AUTHORITY\NETWORK SERVICE 

Exception information: 

Exception type: UriFormatException 

Exception message: Invalid URI: The format of the URI could not be determined. 

Request information: 

Request URL: http://syseng2/pgc/DesktopDefault.aspx 

Request path: /pgc/DesktopDefault.aspx 

User host address: 127.0.0.1 

User: 

Is authenticated: False 

Authentication Type: 

Thread account name: NT AUTHORITY\NETWORK SERVICE 

Thread information: 

Thread ID: 1 

Thread account name: NT AUTHORITY\NETWORK SERVICE 

Is impersonating: False 

Stack trace: at System.Uri.CreateThis(String uri, Boolean dontEscape, UriKind uriKind)

at System.Uri..ctor(String uriString)

at System.Web.Services.Protocols.WebClientProtocol.set_Url(String value)

at ASPNET.StarterKit.Portal.TrapezeService.TrapezeMTSrv.set_Url(String value)

at ASPNET.StarterKit.Portal.TrapezeService.TrapezeMTSrv..ctor()

at ASPNET.StarterKit.Portal.Signin.Page_Init(Object sender, EventArgs e)

at System.Web.UI.Control.OnInit(EventArgs e)

at System.Web.UI.UserControl.OnInit(EventArgs e)

at System.Web.UI.Control.InitRecursive(Control namingContainer)

at System.Web.UI.Control.AddedControl(Control control, Int32 index)

at System.Web.UI.ControlCollection.Add(Control child)

at ASPNET.StarterKit.Portal.DesktopDefault.Page_Load(Object sender, EventArgs e)

at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e)

at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e)

at System.Web.UI.Control.OnLoad(EventArgs e)

at System.Web.UI.Control.LoadRecursive()

at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Custom event details: 

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. 

 So after a fair amount of digging, the problem turned out to be caused by using a default web.config that had stubbed out addresses for web services. See "[stub value]" below. Once this was changed to a syntax correct address (even if the resource is unavailable), the page rendered.


  <applicationSettings>
    <ASPNET.StarterKit.Portal.Properties.Settings>
      <setting name="ASPNETPortal_FaxService_FaxService" serializeAs="String">
        <value>http://localhost/FaxWebService/FaxService.asmx</value>
      </setting>
      <setting name="ASPNETPortal_MSReportingService2005_ReportingService2005" serializeAs="String">
        <value>http://az-dev4/ReportServer/ReportService2005.asmx</value>
      </setting>
      <setting name="ASPNETPortal_MSReportExecution2005_ReportExecutionService" serializeAs="String">
        <value>http://az-dev4/ReportServer/ReportExecution2005.asmx</value>
      </setting>
      <!--setting name="ASPNETPortal_MapPointService_CommonService" serializeAs="String">
        <value>http://findv3.mappoint.net/Find-30/Common.asmx</value>
      </setting-->
      <setting name="ASPNETPortal_MSReportingService_ReportingService" serializeAs="String">
        <value>http://az-dev4/ReportServer/ReportService.asmx</value>
      </setting>
      <setting name="ASPNETPortal_TrapezeService_TrapezeMTSrv" serializeAs="String">
        <value>[stub value]</value>
      </setting>
    </ASPNET.StarterKit.Portal.Properties.Settings>