Kudos to David Stampfli of Microsoft on his valuable assistance solving this dilemma.
I deployed an InfoPath Form template (.xsn file) to a SharePoint 2010 farm and configured a form library to use this template for new documents. In the InfoPath form a call is made to a custom workflow. Everything appears to be configured correctly. But when I save the form I get the following primary error message:
"Unexpected WinWF Internal Error, terminating workflow Id# f7967a24-ee3b-4056-8513-61a10854058c"
An internal exception has the following message:
Unexpected System.Resources.MissingManifestResourceException: Could not find any resources appropriate for the specified culture or the neutral culture. Make sure "Resources.[............].resources" was correctly embedded or linked into assembly "App_GlobalResources.nkxekvue" at compile time, or that all the satellite assemblies required are loadable and fully signed.
What happened? The page resource files weren't properly deployed to the Web Application on the Farm during the WSP deployment. In order to mitigate this issue we have the CopyAppBinContent command for STSADM. See http://technet.microsoft.com/en-us/library/cc261996(office.12).aspx for more. On the WFE I ran the following command to resolve this issue:
stsadm.exe –o copyappbincontent