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ChiefBrian's avatar
ChiefBrian
Contributor
7 months ago

QT - Error No such interface supported

Has anyone been able to test modern QT applications 6.7 or 6.8 and get it to work. I cannot even get the simple example applications from QT to function.  According to support currently 6.7 and 6.8 ...
desktop testing
ChiefBrian's avatar
ChiefBrian
Contributor
7 months ago

Hassan,

The documentation is incorrect.  If you look at the release notes for version 15.72 you will see they added support for 6.7.  I confirmed with the support team that 6.8 is also supported.  6.8 is the LTS version so not sure why they even mention 6.7.  With that being said it doesn't appear to work correctly.

Thanks

Hassan_Ballan's avatar
Hassan_Ballan
Icon for Champion Level 3 rankChampion Level 3
7 months ago

Hi ChiefBrian​ 

Yes, you are correct, TestComplete version 15.72, released on February 5, 2025, added as an improvement Qt 6.7 support https://support.smartbear.com/testcomplete/docs/general-info/version-history/features-added-to-ver-15-72.html 

However, it's important to note that TestComplete's official documentation specifies support for Qt applications built with Qt versions 5.15 and 6.2, which are considered Long-Term Support (LTS) versions. 

Desktop is not my expertise and as no one else in the community responded you will need to further engage with support.

To debug and isolate, as I requested in my earlier post, it would help if you download the sample and try it out. If it does not work for you, it means we are looking in the wrong place.