Exception: 解析表达式出错。 内部错误:值不能為 null。 參數名稱: stream 原始表达式:new StreamReader((Stream)Clipboard.GetData("Link Source Descriptor"), Encoding.Unicode).ReadToEnd().Trim() StackTrace: 於 Quicker.Domain.Actions.X.XActionHelper.GetValueFromExpression2(String expression, ActionExecuteContext context) 於 Quicker.Domain.Actions.X.XActionHelper.<>c__DisplayClass2_3.H4Ea8KWVDKp() 於 gQSMDLbLRuiofeQJeV7.nGh7VrbSnryxk2YRWHX.<>c__DisplayClass3_0.pq9GEVkbp2d() 於 System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) 於 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) 於 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) 於 System.Threading.ThreadHelper.ThreadStart()