when i publish iam geting this error why before i add this tag in the web config i am able to pulish but now i cant am addging master page dynamically here

this is the error

Configuration Error

Configuration Error

Line 34:     <profile>
Line 35:       <properties>
Line 36:         <add
Line 37:         name="MasterPageFile"
Line 38:         defaultValue="Nurse.master" />

Is it because the  MasterPageFile property is already added to the Prfile property. Chekc if this profile property already exists in config

no only this is there

when i remove the <clear/> only this error coming if i not remove the clear this error is coming when i run from VS after removing <clear/> also is working fine in the VS but when i put tht in to the localhost is not woking but with the <clear/> tag is working in the local host why is that

The connection name 'LocalSqlServer' was not found in the applications configuration or the connection string is empty. (C:\Windows\Microsoft.NET\Framework\v2.0.50727\Config\machine.config line 146)

this is my web.config file

configuration>
    <configSections>
        <section name="dataConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Data.Configuration.DatabaseSettings, Microsoft.Practices.EnterpriseLibrary.Data, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
        <sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
            <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
                <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
                <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
                    <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="Everywhere"/>
                    <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
                    <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
                    <section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
                </sectionGroup>
            </sectionGroup>
        </sectionGroup>
    </configSections>
    <appSettings/>
    <connectionStrings>
    <clear/>
        <add name="ConString" connectionString="Data Source=STEPHEN-PC\SQLEXPRESS;initial catalog=MY;User Id=sa;Password=***" providerName="System.Data.SqlClient"/>
    </connectionStrings>
    <dataConfiguration defaultDatabase="ConString">
    </dataConfiguration>
    <system.web>

    <profile>
      <properties>
        <add name="MasterPageFile"/>
      </properties>
    </profile>
    
        <!--
            Set compilation debug="true" to insert debugging
            symbols into the compiled page. Because this
            affects performance, set this value to true only
            during development.
        -->

am using this profile in here

protected void Page_preInit(object sender, EventArgs e)
    {


        if (Request["master"] != null)
        {
            switch (Request["master"])
            {
                case "phar":
                    Profile.MasterPageFile = "PharmacyStaff.master";
                    break;
                case "nurse":
                    Profile.MasterPageFile = "Nurse.master";
                    break;

            }
        }
        MasterPageFile = Profile.MasterPageFile;

    }

if i put the <clear/> tag in that place  that LocaSqlError is coming that is pointing on the Profile.MasterPageFile

why is this please help me

thank you

 Hi,

By default, ASP.NET profile uses connection string named 'LocalSqlServer'. And it is in the machine.config, which is the root config file and all ASP.NET website's web.configs inherit it. So if you use <clear/> tag to clear it, you ASP.NET cannot find it and will throw the exception.

If you want to save profile data in another database, you can modify the 'LocalSqlServer' to point to you new database. For more information, see http://www.odetocode.com/articles/440.aspx

Thanks.