I am using the IdentitySwitcher 2.0 beta on DNN 4.9.4. I am attempting to upgrade to .NET 3.5 and the IS module is throwing this error:

Error: Identity Switcher is currently unavailable.
DotNetNuke.Services.Exceptions.ModuleLoadException: The base class includes the field 'UpdatePanel1', but its type (System.Web.UI.UpdatePanel) is not compatible with the type of control (System.Web.UI.UpdatePanel). ---> System.Web.HttpParseException: The base class includes the field 'UpdatePanel1', but its type (System.Web.UI.UpdatePanel) is not compatible with the type of control (System.Web.UI.UpdatePanel). ---> System.Web.HttpParseException: The base class includes the field 'UpdatePanel1', but its type (System.Web.UI.UpdatePanel) is not compatible with the type of control (System.Web.UI.UpdatePanel). at System.Web.Compilation.BaseTemplateCodeDomTreeGenerator.BuildFieldDeclaration(ControlBuilder builder) at System.Web.Compilation.BaseTemplateCodeDomTreeGenerator.BuildSourceDataTreeFromBuilder(ControlBuilder builder, Boolean fInTemplate, Boolean topLevelControlInTemplate, PropertyEntry pse) at System.Web.Compilation.BaseTemplateCodeDomTreeGenerator.BuildSourceDataTreeFrom...

Does it need to have a 3.5 compiled version or is it something in my web.config?

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Thanks,
Rodney
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