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unknown server tag errors after upgrading web application
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This is a migrated thread and some comments may be shown as answers.
Randy
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Randy asked on 22 Nov 2016, 12:49 AM

I have a Visual Studio 2015 web project that uses RadScheduler and RadEditor.

I just downloaded the latest Telerik version (2016.3.1027) and updated the project.

Now when I build the solution, I get the following errors:

Unknown server tag 'dc:TableDesign'.....file: TableWizard.ascx.....Line: 844

Unknown server tag 'Telerik:TableBorder'.....file: TableProperties.ascx.....Line: 362

 

 

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Marin Bratanov
Telerik team
answered on 22 Nov 2016, 08:28 AM

Hi Randy,

I advise that you perform a manual upgrade: http://docs.telerik.com/devtools/aspnet-ajax/installation/upgrading-instructions/upgrading-a-trial-to-a-developer-license-or-to-a-newer-version#manual-upgrade.

If you have customized the editor dialogs, I advise that you take the new ones from the installation of the new version and apply your changes on them.

Regards,

Marin Bratanov
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Polymorphic Solutions
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answered on 21 Jan 2020, 06:32 AM

Hi,

I know this is an old post. But I am also having the same issue from our end. We are currently using version 2017.1.118.40.

Can I please request for assistance?

Thank you.

 

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Rumen
Telerik team
answered on 21 Jan 2020, 01:36 PM

Hi there,

If RadEditor in your app is configured to use external dialogs (e.g. the ExternalDialogsPath Property is set) please make sure that the files in the EditorDialogs folder are up to date and obtained from the same installation as the Telerik.Web.UI.dll assembly.

You can also put 

        <pages>
            <controls>
                <add tagPrefix="telerik" namespace="Telerik.Web.UI" assembly="Telerik.Web.UI" />
            </controls>
        </pages>

in the web.config file.

Regards,
Rumen
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Randy
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Marin Bratanov
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Polymorphic Solutions
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Rumen
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