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Home > Success Center > Network Performance Monitor (NPM) > Unable to open the Network Atlas

Unable to open the Network Atlas

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Updated March 21, 2018

Overview

When you open Network Atlas on a server running Microsoft® .NET FrameWork 4.0 or earlier, the application fails to open.

The Network Atlas log file is located at:

C:\ProgramData\SolarWinds\NetworkAtlas\NetworkAtlas.log

When you open the file, the following error is displayed:

[1] FATAL NetworkAtlas - 
Message: Could not load type 'System.Runtime.CompilerServices.ExtensionAttribute' 
from assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, 
PublicKeyToken=b77a5c561934e089'.

Environment

  • SolarWinds Network Atlas
  • Microsoft .NET FrameWork 4.0 or earlier

Steps

Upgrade the server to .NET FrameWork 4.5 or later. 

See the Microsoft TechNet website for more information. 

 

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