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Object reference not set to an instance of an object.

Apr 9, 2009 at 1:26 PM
Object reference not set to an instance of an object.   at ASP._layouts_modificationform1_aspx.OnLoad(EventArgs e)
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
Apr 9, 2009 at 6:38 PM
Can you provide is with any more information on what's going on?  Could you attach the workflow.xml file you're using?

Apr 10, 2009 at 5:34 AM
Thanks for replay,below is my Workflow.xml code which is i use in my workflow.

<Elements xmlns="">
       Name="My Workflow"
       Description="This workflow ..."
       CodeBesideAssembly="HElloWF, Version=, Culture=neutral, PublicKeyToken=2eda770b5ff5e1cd"


      <Modification_bf35e820-5070-4e33-bc91-de30388e0b7e_Name>Vipin Testing</Modification_bf35e820-5070-4e33-bc91-de30388e0b7e_Name>


Apr 12, 2009 at 9:43 PM
It looks like you're missing the Modification_GUID_FormUrl metadata entry that allows the framework to load the appropriate .ascx file.  Take a look at the sample shipped in the installer for an example of how to setup the Form Url.  If you have more questions, go ahead and let me know.