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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:






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