• SharePoint 2010 Enterprise
  • Out-of-the-Box Approval Workflow
  • Error only occurs in 1 site collection on any library
  • Is a host-named site collection
  • Works fine on other HN site collections in Farm
  • No modification has been made in InfoPath

See below error message:

Edit or View Form in Modal Dialog

ULS logs shows

The form template failed to load. (User: DOMAIN\first.last, Form Name: Template, IP: , Request: http://site.domain.com/_layouts/WrkTaskIP.aspx?List=578d676d-0bcd-4049-9faf-857bb9d77cca&ID=3&ContentTypeId=0x01080100C9C9515DE4E24001905074F980F93160003A15057E2AF34B67B32E14B94EB7040900D6EDD18586B43441B49F373D71D6093C&IsDlg=1, Form ID: urn:schemas-microsoft-com:office:infopath:workflowInitAssoc:-AutoGen-2009-07-30T07:17:57:12Z:1033, Type: InfoPathLocalizedException, Exception Message: There has been an error while loading the form. 'd:SharePointListItem_RW/d:Incident File Number' has an invalid token.)

Fixes found on Google and already tried:

  • IIS Reset
  • Deactivate and Reactivate SC feature
  • I can see the form correctly in Designer
  • New tasks(not approval workflow related) in the same list display fine
  • Approval workflow behaved correctly in the past according to users

Any suggestions before I delete the site collection and reconnect the database?

  • Does your Workflow Task content type have an added field (Incident File Number) in it?
    – Erin L
    Mar 29, 2016 at 18:50
  • Good observation. That is a result of a VS solution that affected our whole farm. It has been there a couple of years and is present in site collections that work correctly. It would be synonymous with "Item" in a normal farm.
    – Jammin4CO
    Mar 29, 2016 at 19:02
  • It sounds like the task form (which is an infopath form) doesn't have the XML to handle the custom field. All I can think you should do is retract and redeploy the VS solution.
    – Erin L
    Mar 29, 2016 at 19:07
  • @ErinL Where can I find the task form? I looked for _layouts/WrkTaskIP.aspx in /14/bin/layouts and found it, but that affects the whole farm and this works everywhere else. You mentioned XML, where would that be stored, if it became corrupt?
    – Jammin4CO
    Mar 29, 2016 at 19:11
  • Also, the VS solution you mention has nothing to do with OOTB Approval Workflows or their content type. It only renamed the title of the base Item content type.
    – Jammin4CO
    Mar 29, 2016 at 19:16

1 Answer 1


I have found a workaround, but I still don't know what caused it. If I edit the workflow and have it write tasks in a "new task list", my issue is resolved.

  • delete the xsn file and republish the workflow.
    – Taran Goel
    Apr 14, 2016 at 13:31
  • I just deleted the xsn file for the edit task form from the _catalog/wfpub folder. I then republished the workflow. I have the same error in browser. Sorry. This is the kind of answer I expected to fix this issue. Maybe I'm not doing it right? Perhaps you could expound on your comment in an answer?
    – Jammin4CO
    Apr 14, 2016 at 13:47
  • is this a custom edit form in Infopath?
    – Taran Goel
    Apr 14, 2016 at 13:55
  • No. It is the edit task form on an OOTB 2010 Approval workflow. (globally published)
    – Jammin4CO
    Apr 14, 2016 at 14:07
  • cool, you need to open the workflow in designer -> in the bottom right there would be a xsn files -> delete all of them -> Republish
    – Taran Goel
    Apr 14, 2016 at 14:15

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