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Home > Success Center > Network Performance Monitor (NPM) > Poller Checker tool actions do not function and displays 'Unhandled exception' error

Poller Checker tool actions do not function and displays 'Unhandled exception' error

Updated May 9, 2017

Overview

When using the Orion Poller Checker tool, you may find that certain action do not work properly and the following error message is displayed:

Microsoft .NET Framework

Unhandled exception has occurred in your application.  If you click Continue, the application will ignore this error and attempt to continue. If you click Quit, the application will close immediately.

An item with the same key has already been added.

Environment

Orion Platform 2016.2.959

Note: This has not yet been confirmed if limited to this version.

Cause 

The error message is caused by the Upgrade Backups folder in the following location:

%SYSTEMDATA%:\Program Files (x86)\SolarWinds\Orion\Wireless\Upgrade Backups

Resolution

Move the Upgrade Backups folder to a different location.

 

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