QCAD fails to open any files (QCAD 3.32.7.0 (3.32.7) - win 11)

QCAD Professional QCAD Troubleshooting and Problems
1

Versions

QCAD Professional version: 3.32.7.0

Date: Apr 30 2026

Qt version: 6.11.0

Compiler version: Unknown

Build date: Apr 30 2026

Revision: 0ee46f69fe05a36b7c47d6a70681eb6765be166c

Architecture: x86_64

Device pixel ratio: 1

Configuration file: C:/Users/Comp/AppData/Roaming/QCAD/QCAD3.ini

Data directory: C:/Users/Comp/AppData/Roaming/QCAD/QCAD Professional

OS: Windows

OS version: 11

2

Please describe in great details what happens and when, if you try to open a file:

  • Is the file dialog shown?
  • Can you choose a file to open?
  • What happens once you click OK in the file dialog?
  • Is the file loaded but doesn’t show anything? Is the file not loaded?
3

Thank you for your professionalism and quick response!

It was possible to select a file but it couldn’t be opened (I tried opening several different files). The message “Import error: Cannot open file!” would appear. I restarted the computer. After the restart, everything works normally now! I will report if it happens again.

Best regards

4

Thanks for letting us know.

When a new app is installed, it might not immediately have access to user files until its executable has been scanned by Microsoft Defender / SmartScreen or third party AV like Norton, Avast, etc. This could very likely have caused that problem.