Error creating Project

[Anand]

I just installed the Telerik ASP.Net AJAX toolset and when I try to create a new C# website, I get the following error. How do I get past this?

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Microsoft Visual Studio
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[A]Telerik.VSX.WizardEngine.Configuration.ScenarioDefinition cannot be cast to [B]Telerik.VSX.WizardEngine.Configuration.ScenarioDefinition. Type A originates from 'Telerik.VSX.WizardEngine, Version=2012.2.724.0, Culture=neutral, PublicKeyToken=0dfdc51bd06071b4' in the context 'LoadFrom' at location 'C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\Extensions\Telerik\Telerik Silverlight VSExtensions\2012.2.724.0\Telerik.VSX.WizardEngine.dll'. Type B originates from 'Telerik.VSX.WizardEngine, Version=2012.2.814.0, Culture=neutral, PublicKeyToken=0dfdc51bd06071b4' in the context 'LoadFrom' at location 'C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\Extensions\Telerik\Telerik WebUI VSExtensions\2012.2.814.0\Telerik.VSX.WizardEngine.dll'.
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OK   
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[Petar]

Hi Anand,

Thank you for contacting us.

This is a known issue that occurs when you have multiple Telerik VSExtensions installed with different versions.

To prevent such problem from happening I suggest you to ensure that all Telerik VSExtensions are with latest version (which should be the same). The easiest way is to upgrade all Telerik VSExtensions using the Extension Manager of Visual Studio.

If you have any troubles in future don't hesitate to contact us.

All the best,
Petar
the Telerik team