Unable to Define APEX Run in QAPEX Example Project

24 views

Skip to first unread message

Anmol Singh

unread,

Dec 30, 2025, 1:11:31 AM12/30/25

to EPIC / APEX Modeling Forum

Hello APEX Team,

I have recently started learning QAPEX and am using the provided example dataset to practice running the model.

I have successfully completed Step 1 and Step 2 (screenshots attached). However, I am unable to run the APEX model. When I attempt to define the APEX run, the dropdown menus for ISIT and ISUB appear empty (screenshot attached).

As part of troubleshooting, I deleted and reinstalled QAPEX and repeated all steps following the QAPEX manual. I also checked the project .mdb file and noticed that tables such as APEXCONT, APEX, SUBAREA, and others are empty. I was trying to attach my example zip folder in this email but I couldn't find anything to attach. So, I attached the screenshot of 'TxtInOut' folder.

I would greatly appreciate your assistance in identifying what might be missing or incorrectly configured. This guidance would be very helpful for improving my understanding of the QAPEX workflow.

Thank you for your time and support.

Best regards,
Anmol Singh

Luca Doro

unread,

Jan 20, 2026, 12:19:35 PMJan 20

to EPIC / APEX Modeling Forum

Dear Anmol,

Before running the model, have you connected to the database and written the input files? You can find the dedicated menu on the left of "Run APEX Model".

Let me know if you have already done this step before running APEX through QGIS.