The SharePoint install is a SP2010 install on a 2008 R2 server. Everything is fully patched. I am running the SP Designer on the SharePoint Server directly.
I have a workflow which is intended to send an email when a new document is created in a custom list. I have deliberately kept the workflow very simple in order to illustrate this problem.
After creating this single step workflow in SP Designer, I click “Check for Errors” and SP Designer reports “The workflow contains no errors”.
I then click “Publish” but the Workflow Error dialog is displayed with the message
Errors were found when compiling the workflow. The workflow files
were saved but cannot be run.
Clicking the advanced button reveals more information:
Could not publish the workflow because the workflow configuration file
contains errors
Any suggestions gratefully received
After doing a clean install of the OS and SharePoint, workflows are working flawlessly. I can only conclude that the problems were caused by left over registry settings from MOSS 2007. Thanks for the suggestions that people made.