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Home > Success Center > Netflow Traffic Analyzer (NTA) > Unable to find assembly 'SolarWinds.DPI.BusinessLayer'

Unable to find assembly 'SolarWinds.DPI.BusinessLayer'

Created by Michael Perez, last modified by MindTouch on Jun 23, 2016

Views: 12 Votes: 1 Revisions: 3

Overview

This article describes how to correct an issue adding a Node when NTA is installed.  If you check the BusinessLayerHost.log file you will find the error:

Unable to find assembly 'SolarWinds.DPI.BusinessLayer'

Environment

NTA 4.1.2 and earlier

Cause 

This is caused by installing only 64-bit C++ 2013 runtime (part of NTA installation). If there is an older build of 32-bit C++ 2013 runtime, it was uninstalled for unknown reason.  

Resolution

  1. Download vcredist_x86.exe from the Microsoft website.
  2. Run the installer.  
  3. Restart all Orion services from the Orion Service Manager.  
  4. Test by adding the device again.  
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