workitem.open（）KeyNotFoundException TFS 2013

Question

我被这个异常卡住了“给定的键不存在于字典中”，这表明在字典中没有找到某个值，但奇怪的是我不是使用任何字典，我想这是C＃的TFS API的一些内部代码。 这里是代码的提高例外部分：

if (wi.Validate().Count == 0) 
{ 
    // Save the work item to submit changes 
    wi.Save(); 
} 
else 
{ 
    Console.WriteLine("following errors was encountered when trying to save the work   item {0} : ", id); 
    foreach (var e in wi.Validate()) 
         { 
      Console.WriteLine(" - '{0} '", e); 
    } 
} 


        // Close the work item 
        wi.Close(); 

        // Submit the changes to the database 
        SubmitChangesToDatabase(id, author, statusChanged, previousChangeTime); 

        // Open again the work item to go on with other updates 
        wi.Open(); 

这段代码回路，在那里我得到的工作项目，执行使用TFS API的一些更新，在那之后，我改变了只读的一部分仅使用方法SubmitChangesToDatabase直接在数据库上进行。调用方法打开（）时引发异常。 堆栈跟踪如下：

System.Collections.Generic.KeyNotFoundException was unhandled 
    HResult=-2146232969 
    Message=The given key was not present in the dictionary. 
    Source=mscorlib 
    StackTrace: 
     at System.Collections.Generic.Dictionary`2.get_Item(TKey key) 
     at Microsoft.TeamFoundation.WorkItemTracking.Internals.WorkItemHelper.FindRevisionIndexByDate(Int32 trackTimeFieldId, List`1 revisions, Dictionary`2 latestData, DateTime dt, Int32 startIndex) 
     at Microsoft.TeamFoundation.WorkItemTracking.Internals.WorkItemHelper.LoadWorkItemFieldData(IRowSetCollectionHelper tables, IWorkItemOpenFieldDataHelper helper) 
     at Microsoft.TeamFoundation.WorkItemTracking.Client.WorkItem.LoadWorkItemFromRowSetInternal(Int32 rev, Nullable`1 asof, IWorkItemRowSets witem) 
     at Microsoft.TeamFoundation.WorkItemTracking.Client.WorkItem.LoadWorkItem(Int32 id, Int32 rev, Nullable`1 asof) 
     at Microsoft.TeamFoundation.WorkItemTracking.Client.WorkItem.Open() 
     at CSVToTFS.TFSServer.SetWorkItemHistory(Int32 id, DataTable ticketChange) in d:\Documents\Visual Studio 2013\Projects\TFS\CSVToTFS\TFSServer.cs:line 253 
     at CSVToTFS.Program.Main(String[] args) in d:\Documents\Visual Studio 2013\Projects\TFS\CSVToTFS\Program.cs:line 173 
     at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args) 
     at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args) 
     at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() 
     at System.Threading.ThreadHelper.ThreadStart_Context(Object state) 
     at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) 
     at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) 
     at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) 
     at System.Threading.ThreadHelper.ThreadStart() 
    InnerException: 

Answer 1

我已经当我的团队项目配置为使用，而不是AEEA路径队场上有过这一点。如果你改变了这个，一些工作项目还没有指定一个团队，那么你会得到这个错误。

如果用“yourteamfield.team”创建的查询设置为空并批量更新所有工作项以获取值，则错误应该消失。