在開發工具中調試正常，一放到本地iis中調試就報下面的錯誤，怎么辦？

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A name was started with an invalid character. Error processing resource 'http://localhost/MyWeb/Default.aspx'. Line 1, Pos...

<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>
    -^

放到服務器iis就會顯示下面的錯誤

Server Error in '/shopfloor' Application.

---

Runtime Error

Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.

Details: To enable the details of this specific error message to be viewable on remote machines, please create a <customErrors> tag within a "web.config" configuration file located in the root directory of the current web application. This <customErrors> tag should then have its "mode" attribute set to "Off".

<!-- Web.Config Configuration File -->
            <configuration>
            <system.web>
            <customErrors mode="Off"/>
            </system.web>
            </configuration>

<!-- Web.Config Configuration File -->
            <configuration>
            <system.web>
            <customErrors mode="RemoteOnly" defaultRedirect="mycustompage.htm"/>
            </system.web>
            </configuration>