I am needing to move a template into a content type folder and have it be the new template, but when I do I get this error when I try to open a form based on it. Anyone seen this before? What does it mean?
I've only seen this client side and we've resolved the issue by clearing the users cache, or by rebuilding their profile where that hasn't worked (very rare). Unfortunately we don't know what causes this, but we do know that it only seems to affect users on Windows XP and that Windows 7+ users are completely unaffected.
If one extract template.xsn from created in Infopath Designer 2010 XSN template, which is really archive of a bunch of files,
and separately tries open the extracted so template.xml locally in Infopath Designer/Filler 2010, out of other files in template archive XSN, then one gets such error.
Other variants are possible.
Instead open first Infopath Designer 2010 and then open a template from there.