Hi I have installed WF1.0 and configured sucessfully and associated the workflow service with the web application.I am able to publish the workflow , but it is not starting in the site . But it is showing under IN progress list . In ULS i found the below error .

System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.   
 at System.Collections.Generic.Dictionary`2.get_Item(TKey key)    
 at Microsoft.SharePoint.WorkflowServices.FabricWorkflowInstanceProvider.GetRetryMessage(WorkflowInstance instance)    
 at Microsoft.SharePoint.WorkflowServices.FabricWorkflowInstanceProvider.GetInstance(Guid instanceId)    
 at Microsoft.SharePoint.WorkflowServices.ApplicationPages.WrkStatPage.OnLoad(EventArgs e)    
 at System.Web.UI.Control.LoadRecursive()    
 at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsync

Did you configure User Profile Application/User Profile Sync service? One of the reason for this error is that you do not have User Profile available.

Hi,

According to your post, my understanding is that the workflow failed to start.

To troubleshooting the issue, please follow the steps in the Workflow Configuration and Steps to Troubleshoot Workflow Execution sections.

In addition, you need to re-enable workflows on site.

There is an article for your reference, although it is about the SharePoint 2010, it still works for SharePoint 2013.

http://www.sharepointboris.net/2011/12/sharepoint-designer-workflow-failed-on-start-retrying-issue/

Best Regards,

Linda Li