Error: Unknown Server Tag - DNNComboBox

DNN Version: 09.02.00
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Symptom

Error:

DotNetNuke.Framework.PageBase - An error has occurred while loading page.System.Web.HttpParseException (0x80004005): Unknown server tag 'dnn:DnnComboBox'.

Possible Cause

An older version of the DNN Events module is installed.

Solution

  1. Download the latest version of the DNN Events module.
  2. Go to your site.
  3. Log into the site as a superuser/host.
  4. Install the downloaded version of the DNN Events module.