PWA 2013 - “已添加具有相同密鑰的項目”

突然我的 PWA 2013 開始顯示以下錯誤（從事件查看器中提取）

Event code: 3005 
Event message: An unhandled exception has occurred. 
Event time: 11/25/2013 12:37:05 PM 
Event time (UTC): 11/25/2013 2:37:05 PM 
Event ID: 347fe626e1274a4a96fb2afc7e537b44 
Event sequence: 194 
Event occurrence: 193 
Event detail code: 0 

Application information: 
   Application domain: /LM/W3SVC/3/ROOT/bea8a2b7b12941f1bc7b6a7ea02f25b6-1-130298629694620451 
   Trust level: Full 
   Application Virtual Path: /bea8a2b7b12941f1bc7b6a7ea02f25b6 
   Application Path: C:\Program Files\Microsoft Office Servers\15.0\WebServices\Shared\ProjectServer\ 
   Machine name: XXXX

Process information: 
   Process ID: 6040 
   Process name: w3wp.exe 
   Account name: XXXX\svc.sharepoint.app 

Exception information: 
   Exception type: ArgumentException 
   Exception message: An item with the same key has already been added.
  at System.Runtime.AsyncResult.End[TAsyncResult](IAsyncResult result)
  at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult result)
  at System.Web.HttpApplication.AsyncEventExecutionStep.OnAsyncEventCompletion(IAsyncResult ar)

Request information: 
   Request URL: http://XXXX:32843/bea8a2b7b12941f1bc7b6a7ea02f25b6/PSI/psiserviceapp.svc 
   Request path: /bea8a2b7b12941f1bc7b6a7ea02f25b6/PSI/psiserviceapp.svc 
   User host address: ::1 
   User:  
   Is authenticated: False 
   Authentication Type:  
   Thread account name: XXXX\svc.sharepoint.app 

Thread information: 
   Thread ID: 16 
   Thread account name: XXXX\svc.sharepoint.app 
   Is impersonating: False 
   Stack trace:    at System.Runtime.AsyncResult.End[TAsyncResult](IAsyncResult result)
  at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult result)
  at System.Web.HttpApplication.AsyncEventExecutionStep.OnAsyncEventCompletion(IAsyncResult ar)

我一直在尋找有關它的一些線索，但找不到任何真正接近我的問題的東西。有小費嗎？

找到了一個修復它。這是 User Profile Service 應用程序的問題。我只是設法正確啟動它，問題現在消失了。

引用自：https://serverfault.com/questions/557266