I created a workflow project with WSPBuilder and everything worked fine. I then moved the workflow to our main project and added all needed references. However when I try to couple the workflow I always get the message: "Failed on start (retrying)" when it's being executed. In my logs I find following error:
0x14E4 Windows SharePoint Services
936l High Engine RunWorkflow: System.Workflow.ComponentModel.Compiler.WorkflowValidationFailedException: The workflow failed validation. at System.Workflow.Runtime.WorkflowDefinitionDispenser.ValidateDefinition(Activity root, Boolean isNewType, ITypeProvider typeProvider) at System.Workflow.Runtime.WorkflowDefinitionDispenser.LoadRootActivity(Type workflowType, Boolean createDefinition, Boolean initForRuntime) at System.Workflow.Runtime.WorkflowDefinitionDispenser.MruCache.GetOrGenerateDefinition(Type type, String xomlText, String rulesText, Byte md5Codes, Boolean initForRuntime, Boolean& exist) at System.Workflow.Runtime.WorkflowDefinitionDispenser.GetRootActivity(Type workflowType, Boolean createNew, Boolean initForRuntime) at System.Workflow.Runtime.WorkflowRuntime.Initializ...
But the validation should be correct since it worked before ?