CrmException:给定的键不存在于字典中.当打开一个现有的机会

正如标题所说，当试图打开一个现有的机会时，我们现在得到一个"CrmException: the given key was not present in the dictionary."错误。

这似乎只影响一些记录，因为我们仍然可以打开其他记录。我的直觉反应是，其中一个picklist值不知何故从系统中删除了，但没有办法告诉当前。

我想我的问题是，我如何把这个通用的错误信息变成有用的东西来修复错误?

这是CRM跟踪日志中的堆栈跟踪

[2011-12-05 17:00:33.848] Process: w3wp |Organization:00000000-0000-0000-0000-000000000000 |Thread:   26 |Category: Platform |User: 00000000-0000-0000-0000-000000000000 |Level: Error | ExceptionConverter.ConvertMessageAndErrorCode
at ExceptionConverter.ConvertMessageAndErrorCode(Exception exception, Int32& errorCode)
at ExceptionConverter.ToSingleFaultOther(Exception exception)
at ExceptionConverter.ToSingleFaultUntyped(Exception exception)
at ExceptionConverter.ConvertToFault(Exception exception)
at ExceptionConverter.TryConvertToFaultExceptionInternal(Exception exception, Boolean createNewFaultException, FaultException`1& faultException)
at FaultHelper.ConvertToFault(Exception exception)
at ErrorInformation..ctor(Exception exception, Uri requestUrl, Boolean logError)
at MainApplication.Application_Error(Object sender, EventArgs eventArguments)
at EventHandler.Invoke(Object sender, EventArgs e)
at HttpApplication.RaiseOnError()
at ApplicationStepManager.ResumeSteps(Exception error)
at HttpApplication.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData)
at HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr)
at ISAPIRuntime.ProcessRequest(IntPtr ecb, Int32 iWRType)
>System.Web.HttpUnhandledException: Microsoft Dynamics CRM has experienced an error. Reference number for administrators or support: #B89073F3: System.Web.HttpUnhandledException (0x80004005): Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> Microsoft.Crm.CrmException: The given key was not present in the dictionary.
>       at            Microsoft.Crm.Application.Platform.ServiceCommands.PlatformCommand.XrmExecuteInternal()

在Microsoft.Crm.Application.Platform.ServiceCommands.RetrieveCommand.Execute ()在Microsoft.Crm.Application.Platform.EntityProxy。检索(String[] columns, Guid auditingTransactionId)在Microsoft.Crm.Application.Platform.EntityProxy。检索(String columnSet, Guid auditingTransactionId)在Microsoft.Crm.Application.Platform.EntityProxy。检索(字符串columnSet)在Microsoft.Crm.Application.Forms.AppForm.FormLoadEvent ()在Microsoft.Crm.Application.Forms.AppForm。RaiseDataEvent (FormEventId eventId)在Microsoft.Crm.Application.Forms.EndUserForm。初始化实体(实体)在Microsoft.Crm.Application.Forms.CustomizableForm。执行(实体实体，FormDescriptor fd)在Microsoft.Crm.Application.Components.PageHandlers.OpportunityRecordPageHandler.ConfigureFormHandler ()在Microsoft.Crm.Application.Components.Utility.GenericEventProcessor。eventName RaiseEvent(字符串)在Microsoft.Crm.Application.Controls.PageManager。OnPreRender (EventArgs e)在System.Web.UI.Control.PreRenderRecursiveInternal ()在System.Web.UI.Page。ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)在System.Web.UI.Page。HandleError(异常e)在System.Web.UI.Page。ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)在System.Web.UI.Page。ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)在System.Web.UI.Page.ProcessRequest ()在System.Web.UI.Page。ProcessRequest (HttpContext上下文)在System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute ()在System.Web.HttpApplication。ExecuteStep(IExecutionStep step, Boolean&completedSynchronously)