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    Nintex Knowledge Base

    Error "Sorry, something went wrong. Could not load file or assembly" After Upgrading to Nintex Forms

    When opening workflow designer or Nintex Workflow Managment in the Central Administration, after upgrading to Nintex Forms, the following error occurs: Sorry, something went wrong Could not load file or assembly 'Nintex.Workflow.Server.Controls,Version=, Culture= neutral , PublicKeyToken = 913f6bae0ca5ae12' or one of its dependencies. The system cannot find the file specified.

    Re-run the installer in the following order: 
    1. Nintex Forms Installer (Build 
    2. Nintex Workflow Installer  (Build