System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) +11185650

System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost) +1305

System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share) +65

System.Web.HttpResponse.WriteFile(String filename, Boolean readIntoMemory) +80

System.Web.HttpResponse.WriteFile(String filename) +18

SciTech.DownFile.Page_Load(Object sender, EventArgs e) in F:\机电工程网站\机电2015.1.8\SciTech\SciTech\DownFile.aspx.cs:23

System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +51

System.Web.UI.Control.OnLoad(EventArgs e) +92

System.Web.UI.Control.LoadRecursive() +54

System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +772