I recently noticed this error on the SharePoint 2010 Front End Web server:

  • Event ID: 7043
  • Source: SharePoint Foundation
  • Details: Load control template file /_controltemplates/TaxonomyPicker.ascx failed: Could not load type ‘Microsoft.SharePoint.Portal.WebControls.TaxonomyPicker’ from assembly ‘Microsoft.SharePoint.Portal, Version=, Culture=neutral, PublicKeyToken=71e9bce111e9429c’.

A quick search online proved that this is easy to fix:

  1. Navigate to 14 Hive (/14/TEMPLATS/ControlTemplates/TaxonomyPicker.ascx) user control
  2. Open this user control in a text editor and locate the first line.
  3. Find the character string , and replace with a comma ‘, ‘ (without quotes).
  4. Save the user control and you have completed fixing this bug.

Todd Carter also suggests removing this user control, since it isn’t used in the Microsoft.SharePoint.Portal assembly. You can read more about this error and fix on his blog at http://todd-carter.com/post/2010/05/03/Help-Wanted-Taxonomy-Picker.aspx.

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