我的Asp.Net Empty Web应用程序项目中缺少Global.asax文件

I have created a C#-> Asp.Net Empty Web Application (Framework 4.0). I want to add few line of code in Global.asax on Application_Error section. But unfortuantely global.asax file is missing. How can i add that file? My visual studio version is 2012I have created a C#-> Asp.Net Empty Web Applica