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Home > Success Center > Network Performance Monitor (NPM) > UnDP - Object Reference Is Not Set To An Instance Of An Object

UnDP - Object Reference Is Not Set To An Instance Of An Object

Updated June 15th, 2016

Overview

Error when trying to create a UnDP through the UnDP program and clicking on the Browse MIB TREE button: "Object error not set to an instance of an object error".

 

Environment

 

Cause 

  • Components from the Additional Polling Engine (APE) to Main Polling Engine do not match.
  • The issue only appears when you click the "Browse MIB Tree".

Resolution

Sample Resolution:

  1. Compare components of the APE and the Main Polling Engine.
  2. Notice that APE has Microsoft .Net Framework 4.0.30319 while Primary Poller has Microsoft .Net Framework 4.6.01055.
  3. Notice that compared to the working Main Polling Engine, the APE has an additional Microsoft Visual C++ 2015 Redistributable (x64) - 14.0.23026.
  4. To resolve the issue, make sure that APE matches the components of the Main Polling Engine.

Steps

  1. Update Microsoft .Net Framework 4.0.30319 to Microsoft .Net Framework 4.6.01055.

    Download Link: Microsoft .Net Framework 4.6.0 (© 2017 Microsoft, available at https://www.microsoft.com/, obtained on January 20, 2017.)

  2. Uninstall Microsoft Visual C++ 2015 Redistributable (x64) - 14.0.23026 from the APE.
  3. Click Browse MIB Tree with no errors.

 

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Last modified
01:59, 29 May 2017

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