委外用料清单多次下推委外用料清单变更.下推直接调拨出错

The value "Microsoft.Scripting.Runtime.DynamicStackFrame" is not of type "System.String" and cannot be used in this generic collection.
Parameter name: key

发生时间：16:25:21
错误来源： mscorlib
错误信息：The value "Microsoft.Scripting.Runtime.DynamicStackFrame" is not of type "System.String" and cannot be used in this generic collection.
Parameter name: key
===================================================
调用堆栈：

Server stack trace:
at System.ThrowHelper.ThrowWrongKeyTypeArgumentException(Object key, Type targetType)
at System.Collections.Generic.Dictionary`2.System.Collections.IDictionary.set_Item(Object key, Object value)
at IronPython.Runtime.Operations.PythonOps.UpdateStackTrace(Exception e, CodeContext context, FunctionCode funcCode, Int32 line)
at (Closure , CodeContext , FunctionCode )
at Microsoft.Scripting.Interpreter.LightLambda.Run2[T0,T1,TRet](T0 arg0, T1 arg1)
at IronPython.Compiler.PythonScriptCode.RunWorker(CodeContext ctx)
at IronPython.Compiler.RuntimeScriptCode.InvokeTarget(Scope scope)
at Kingdee.BOS.Scripting.PyExpressionEvaluator.Run(Expression expression, ExpressionContext context)
at Kingdee.BOS.App.Core.Convertible.BusinessService.Calculate.DoAction(PushBusinessServiceArgs e)
at Kingdee.BOS.App.Core.Convertible.ExecuteFormBusinessAction.ExecuteFormBusinessService(IDynamicFormModel model, FormBusinessService service, IPushFormBusinessService executeService)
at Kingdee.BOS.App.Core.Convertible.ExecuteFormBusinessAction.Do()
at Kingdee.BOS.Core.BusinessPolicyModel.BusinessPolicyEngine.Do(OperateOption context)
at Kingdee.BOS.App.Core.Convertible.ConvertEngine.OnCreating(PushArgs pushArgs, OperateOption option)
at Kingdee.BOS.App.Core.ConvertService.Push(Context ctx, PushArgs serviceArgs, OperateOption option, Boolean validPermission)

Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at Kingdee.BOS.Contracts.IConvertService.Push(Context ctx, PushArgs serviceArgs, OperateOption option, Boolean validPermission)
at Kingdee.BOS.ServiceHelper.ConvertServiceHelper.Push(Context ctx, PushArgs serviceArgs, OperateOption option)
at Kingdee.BOS.Business.Bill.Operation.Push.DoPush(OpFormReturnInfo retInfo, ListSelectedRow[] selectedRows)
at Kingdee.BOS.Web.DynamicForm.DynamicWebFormView.<>c__DisplayClass2e.b__2c()
错误数据： System.Collections.ListDictionaryInternal