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Home > Success Center > Netflow Traffic Analyzer (NTA) > NTA - Knowledgebase Articles > NTA Could not load file or assembly Solarwinds.Licensing.Framework

NTA Could not load file or assembly Solarwinds.Licensing.Framework

Updated December 21, 2016


When upgrading NTA, the following error is found in the logs after it has been installed:

ERROR SolarWinds.Orion.NetFlow.Service.Program - NetFlowService will be abnormally terminated - Unhandled exception. 

System.IO.FileLoadException: Could not load file or assembly 'Solarwinds.Licensing.Framework'




This occurs when the Solarwinds.Licensing.Framework DLL file is missing from C:\Program Files (x86)\SolarWinds\Orion\NetFlowTrafficAnalysis


  1. Check the folder default path: C:\Program Files (x86)\SolarWinds\Orion\NetFlowTrafficAnalysis
  2. If this is missing, perform any of the following:
    • Open the Control Panel and repair NTA.
    • Run the NTA installer so the files can be updated and created.


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