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Resolving Parser Errors: Unknown server tag ‘atlas:ScriptManager’ in ATLAS (AJAX)

September 17th, 2006

I encountered a number of Parse Error Messages while implementing the Accordion control from ATLAS.

The error messages read:
Parser Error Message: Unknown server tag ‘atlas:ScriptManager’. 

Source Error:  <atlas:ScriptManager id=”ScriptManager” runat=”server” />

This message occured for a number of different reasons, this brief checklist should resolve your parse errors.

1) Ensure that the following assemblies are in your bin directory:
AtlasControlToolkit.dll
Microsoft.AtlasControlExtender.dll
Microsoft.Web.Atlas.dll

2) Ensure that the following has been added to your web.config file

<pages>
  <
controls>
    <
add namespace=Microsoft.Web.UI
         assembly=Microsoft.Web.Atlas tagPrefix=atlas/>
   
<
add namespace=Microsoft.Web.UI.Controls
         assembly=Microsoft.Web.Atlas tagPrefix=atlas/>
   
<
add namespace=AtlasControlToolkit
         assembly=AtlasControlToolkit tagPrefix=atlasToolkit/>
 
</
controls>
</
pages>

Related links:
Data Binding in an AccordionPane in a Repeater
Atlas Control Toolkit: Unknown Server Tag

Author: Adam Kahtava Categories: .NET, AJAX, ASP.NET, ASP.NET AJAX Tags: