http://developers.de/blogs/damir_dobric/archive/2013/05/30/expression-translation-error-when-publishing-sharepoint-workflow.aspxWhen publishing the workflow with client.PublishWorkflow(workflowName, "MyWorkflow.xaml"); you may notice ExpressionTranslation Errors. Usually these errors briefly explain the problem. Unfortunately there is one strange case, which is difficultenCommunityServer 2008 SP1 (Build: 30619.63)