This an error I got while developing reusable Sharepoint Designer workflows for Sharepoint 2010. What I was trying to do was to create a new reusable SPD workflow and publish it globally to the Site Collection, then I would try to export it as a WSP template and import it on different sites. I had already succesfully exported other workflows with no issues however with this one I run into a new error. When clicking the “Save as template” button, Sharepoint Designer would return the error “the server was unable to create your template”….
‘the server was unable to create your template’ error when saving Sharepoint Designer workflow as a template