<轉貼>The browser or gateway element with ID 'Safari1Plus' cannot be found. Upgrading to .NET4

先前有個case用asp.net 2.0寫，
新專案都已用升級至4.0，
2.0中使用App_Browsers中寫支援各瀏覽器的Code，
因4.0有修改做法造成編譯錯誤，
詳情與此解在下面原文連結有說明

原文連結
http://www.britishdeveloper.co.uk/2010/05/how-to-upgrade-to-aspnet4.html
http://www.britishdeveloper.co.uk/2010/03/browser-or-gateway-element-with-id.html