# Adding silverlight project onto a website error

**URL:** https://forum.kirupa.com/t/adding-silverlight-project-onto-a-website-error/282606
**Category:** programming
**Created:** [February 24, 2009, 5:42am UTC](https://forum.kirupa.com/t/adding-silverlight-project-onto-a-website-error/282606 "2009-02-24T05:42:01Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![samuelt](https://avatars.discourse-cdn.com/v4/letter/s/a88e57/32.png) [@samuelt](https://forum.kirupa.com/u/samuelt)
#### Post date: [February 24, 2009, 5:42am UTC](https://forum.kirupa.com/t/adding-silverlight-project-onto-a-website-error/282606/1 "2009-02-24T05:42:01Z")

</div>

Hi Kirupa,

First I want to say thank you for your awesome tutorials. They have been very helpful.

However, I came across this basic tutorial on how to add Silverlight project onto a new website on your page.

[COLOR=#800080][http://www.kirupa.com/blend\_silverlight/silverlight\_website\_projects\_pg3.htm[/COLOR]](http://www.kirupa.com/blend_silverlight/silverlight_website_projects_pg3.htm%5B/COLOR%5D)

I was applying these instructions above on another Silverlight project on your website.  
[http://www.kirupa.com/blend\_silverlight/preloading\_displaying\_image\_pg5.htm](http://www.kirupa.com/blend_silverlight/preloading_displaying_image_pg5.htm)

And I came across this error below, which I’m unable to resolve.  
I have looked across quite a bunch of forums to no avail.

Error 1 Unknown server tag ‘asp:ScriptManager’. C:\Codes\Samples\Silverlight\LoadingImages\_Tutorial\Website\LoadingImages\_TutorialTestPage.aspx 13

These are some of the code snippets my VS 2008 produced for me.  
It’s using the latest Silverlight Tools for VS SP1.

[SIZE=2]\<%[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]@[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]Page[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#ff0000][SIZE=2][COLOR=#ff0000]Language[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]=“c#”[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#ff0000][SIZE=2][COLOR=#ff0000]AutoEventWireup[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]=“true”[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] %\>  
\<%[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]@[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]Register[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#ff0000][SIZE=2][COLOR=#ff0000]Assembly[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]=“System.Web.Silverlight”[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#ff0000][SIZE=2][COLOR=#ff0000]Namespace[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]=“System.Web.UI.SilverlightControls”  
[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][/SIZE][SIZE=2][COLOR=#ff0000][SIZE=2][COLOR=#ff0000]TagPrefix[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]=“asp”[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] %\>  
[/SIZE]  
[SIZE=2][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]\<[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]asp[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]:[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]ScriptManager[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#ff0000][SIZE=2][COLOR=#ff0000]ID[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]=“ScriptManager1”[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#ff0000][SIZE=2][COLOR=#ff0000]runat[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]=“server”\>\</[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]asp[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]:[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]ScriptManager[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]\>  
[/COLOR][/SIZE][/COLOR][/SIZE]  
Please help.

Thank you.

Samuel