Posted Thu, 22 Oct 2020 06:36:50 GMT by Poly Trimi
Hi guys,

I'm a newbie in feflow and fepest.
I did the demo excersise for fepest and everything worked fine.  I inserted for calibration a model that I had previously created in feflow and when I try to save it as a fepest project, make checks and run it or even close the fepest program then I am taking back the error invalid argument passed and I really can't figure out what is going on. Can u please help me???? :) :) :)

Thanks in advance
Posted Mon, 26 Oct 2020 12:44:58 GMT by Peter Schätzl Grundwassermodellierer
Sounds like a license issue... Pls. check whether you run with a valid license or in DEMO mode (in the latter case with a small model only).
Posted Wed, 04 Nov 2020 06:44:40 GMT by Poly Trimi
Thank you for your response.

Actually it was the path name(written in greek) that was creating the problem.

Have a nice day!!!
Posted Thu, 04 Nov 2021 18:50:02 GMT by Sergio Andrés Bea
I am using FePest, and the following error message was obtained when I am trying to calibrate Kyy and Kzz tied to Kxx in different zones:

[INFO] running the script: run_pest.bat
[INFO] running PEST...
PEST Version 16.1. Watermark Numerical Computing.

PEST is running in parameter estimation mode.

PEST run record: case pastos_grandes_2_to_
(See file pastos_grandes_2_to_.rec for full details.)

Model command line:

Running model .....

    Running model 1 time....
[ERROR] Invalid zone: no zone with name (detected by workaround): .

Error condition prevents continued PEST execution:-

Cannot open model output file pastos_grandes_2_to_.fpo.

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