Submit a ticketCall us

Training ClassThe Orion® Platform Instructor-led Classes

Provided by SolarWinds® Academy, these trainings will introduce users to the Orion Platform and its features, management, and navigation. These courses are suitable for users looking to discover new tips, tricks, and ways to adapt their Orion products to better suit their monitoring needs:
Deploying the Orion Platform
Configuring Orion views, maps, and accounts
Configuring Orion alerts and reports

Reserve your seat.

Home > Success Center > Network Topology Mapper (NTM) > NTM - Knowledgebase Articles > Error while opening application: File CALCULATION.CFG is not invalid

Error while opening application: File CALCULATION.CFG is not invalid

Updated February 24, 2017


This article provides a solution to the following error displayed when opening the application:

File 'Calculation.cfg' is not invalid.

The program is corrupted and may not run properly.\r\nlt is recommended to repair or reinstall the program.



NTM 2.2.2


Malformed file during installation or by some external sources (i.e. anti virus).


Copy below file to the C:\ProgramData\Application Data\Solarwinds\Network Topology Mapper\Configs\ folder and restart application:






Last modified