The file Default_Login.aspx has not been pre-compiled, and cannot be requested

用VS2005自带的Dotfuscator对Dll文件处理之后再运行网站，出现下面的提示，该怎么办？

The file Default_Login.aspx has not been pre-compiled, and cannot be requested.
 

------解决方法--------------------------------------------------------
排除对ASP名称空间的重命名。