Sensitivity Analysis Error: 'Could Not Generate Parameter Sample' - SWAT+ Toolbox v3.2.0

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20RU5A0129 NARASAPPAGARI SUDARSHAN

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Aug 4, 2026, 11:01:56 PM (12 days ago) Aug 4
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Hello,

I'm running into an error while trying to run a Sensitivity Analysis in SWAT+ Toolbox and would appreciate any guidance.

Software version: SWAT+ Toolbox v3.2.0
Project: Pennar SF sub-basin, daily river flow calibration (Channel 23)

Issue:
When I click Run on the Sensitivity Analysis tab, I get the following error:

"Could not generate parameter sample. Sensitivity analysis failed to run because there was an error generating parameter sample. This can happen if the maximum is less than the minimum for one or more parameter ranges."

I have double-checked my parameter table (12 parameters added) and every Minimum value is smaller than its corresponding Maximum - none appear reversed.  I have attached Screenshots of the respective error i encounterd.

Has anyone encountered this specific error with a similarly "clean-looking" parameter table? Any guidance on how to isolate which parameter/value is actually triggering it would be much appreciated.

Happy to share my project file or additional screenshots if that would help troubleshoot.

Thank you,
Sudarshan 
Screenshot 2026-08-03 234249.png
Screenshot 2026-08-03 233627.png
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