Question
Why do I get the error message "Invalid argument passed!" when running FePEST?
The error message can be seen in Fig. 1.
Fig. 1 - Error message when running FePEST
Answer
PEST character requirements are very strict. Please check the name of the working folder and make sure that there are no special characters in the file name and/or in the folder path:
<SPACE>
@
~
#
(
)
FURTHER INFORMATION & USEFUL LINKS
Manuals and Guidelines
FePEST 8.1 Documentation - What is FePEST? (feflow.com)
Training options
FEFLOW – Diving into the latest developments
FEFLOW – Getting started with model calibration and uncertainty quatification