我有以下内容：
-gnatw.e如果我尝试使用info: in instantiation at a-cohama.ads:73
info: "ID_Count_Hashed_Map" requires body ("Has_Element" requires completion)
info: in instantiation at a-cohama.ads:79
info: "ID_Count_Hashed_Map" requires body ("=" requires completion)
info: in instantiation at a-cohama.ads:90
info: "ID_Count_Hashed_Map" requires body ("Capacity" requires completion)
...
进行编译，我会收到警告：
-gnatw.e
这些警告意味着什么？我在哪里可以找到文档中的相关内容？而且，如果他们与我的代码无关，如何在保留其余 string add = "set identity_insert ticketing off;insert into ticketing(seat,customerID,tripID,reservationdate,fare) values('" + (string)HttpContext.Current.Session["seats"] + "',(select distinct customerID from customer where email = '" + (string)HttpContext.Current.Session["cusEmail"] + "'),(Select distinct tripID from trip where terminal = '" + (string)HttpContext.Current.Session["origin"] + "' and destination = '" + (string)HttpContext.Current.Session["destination"] + "'),GETDATE()," + totalfare + ")";
的同时将其关闭？