只有在调试模式下进行编译时，生成此未经处理的异常的源代码才会显示出来。若要启用此功能，请执行以下步骤之一，然后请求 URL: 1. 在产生错误的文件的顶部添加一条“Debug=true”指令。例如: <var>X</var> <%@ Page Language="C#" Debug="true" %><var>Y</var>或:2. 将以下的节添加到应用程序的配置文件中:<var>Z</var><configuration> <system.web> <compilation debug="true"></compilation> </system.web></configuration><var>A</var> 请注意，第二个步骤将使给定应用程序中的所有文件在调试模式下进行编译；第一个步骤仅使该特定文件在调试模式下进行编译。 重要事项: 以调试模式运行应用程序一定会产生内存/性能系统开销。在部署到生产方案之前，应确保应用程序调试已禁用。

The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL:1. Add a "Debug=true" directive at the top of the file that generated the error. Example:<var>X</var> <%@ Page Language="C#" Debug="true" %><var>Y</var>or:2) Add the following section to the configuration file of your application:<var>Z</var><configuration> <system.web> <compilation debug="true"></compilation> </system.web></configuration><var>A</var> Note that this second technique will cause all files within a given application to be compiled in debug mode. The first technique will cause only that particular file to be compiled in debug mode. Important: Running applications in debug mode does incur a memory/performance overhead. You should make sure that an application has debugging disabled before deploying into production scenario.

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