急pb11.5编译成功了,但在浏览器中打开时,显示的是HTML文本,该怎么处理啊

急~~pb11.5编译成功了,但在浏览器中打开时,显示的是HTML文本,该怎么办啊?
pb11.5编译成功了
提示如下
---------- Deploy: Deploy of project p_lh_webform (16:29:45) 
Checking IIS server... 
Generating .NET assembly file... 
Generating PBD files... 
Copying to IIS server... 
Deploy succeeded. 
---------- Finished Deploy of project p_lh_webform (16:30:04) 
但在浏览器中打开时,显示的是HTML文本,该怎么办啊?

<%@ Page ValidateRequest="false" EnableEventValidation="false" language="c#" EnableViewState="false" SmartNavigation="false" Codebehind="default.aspx.cs" AutoEventWireup="false" Inherits="PBWebApp._Default" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<html>
<head runat="server">
<title>Main</title>
<meta http-equiv="Page-Enter" content="blendTrans(Duration=0.0)" />
<meta name="GENERATOR" content="Sybase PBWeb.NET Compiler" />
<meta name="CODE_LANGUAGE" content="C#" />
<meta name="vs_defaultClientScript" content="JavaScript" />
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5" />
<script language="JavaScript" type="text/javascript" src="scripts/PBCollections.js"></script>
<script language="JavaScript" type="text/javascript" src="scripts/PBConst.js"></script>
<script language="JavaScript" type="text/javascript" src="scripts/PBCommonUtil.js"></script>
<script language="JavaScript" type="text/javascript" src="scripts/PBPDFPrinting.js"></script>
<script language="JavaScript" type="text/javascript" src="scripts/PBWindow.js"></script>
<script language="JavaScript" type="text/javascript" src="scripts/PBFile.js"></script>
<script language="JavaScript" type="text/javascript" src="scripts/PBEditMask.js"></script>
<script language="JavaScript" type="text/javascript" src="scripts/PBDataWindow.js"></script>
<%-- User Defined JavaScript Files --%>
</head>
<body ms_positioning="GridLayout" onkeydown="goWindowManager.BodyKeyDown(event)" onkeyup="goWindowManager.BodyKeyUp(event)">
<script language="JavaScript" type="text/javascript"> PB_ShowMask(); </script>
<form id="Form1" method="post" runat="server">
  <asp:ScriptManager ID="ScriptManager1" EnablePartialRendering="true"
  EnableScriptGlobalization="true" AsyncPostBackTimeOut="1200" runat="server" />
<script language="JavaScript" type="text/javascript">
var g_eTimeout = null;
PB_SetupWindowEventHandlers();
var prm = Sys.WebForms.PageRequestManager.getInstance();
prm.add_pageLoaded(pageLoaded);
prm.add_initializeRequest(InitializeRequest);
prm.add_endRequest(EndRequest);

function pageLoaded(sender, args)
{
PB_SetupWindows(gWindowStyle, goWindowManager.strActiveID, gbShowExitMessage, gstrExitMessage);
}
  
function InitializeRequest(sender, args)
{
PB_ClearSelection();
g_inErrorPage = false;
PB_ClearTimeout();
if (g_eTimeout != null)
{
window.clearTimeout(g_eTimeout);
g_eTimeout = null;
}

if(typeof(PB_ResetDatePicker) != "undefined")
{
PB_ResetDatePicker();