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ChiefBrian's avatar
ChiefBrian
Contributor
4 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
4 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
4 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.

  • ChiefBrian's avatar
    ChiefBrian
    Contributor
    4 months ago

    QT 6.2 is no longer in LTS it ended last year.

    I do not know why Smartbear has not updated their documentation that is on them, but the current release of TC does not support QT 6.2 at all. That support was removed with the 15.72 update, and per support that was on purpose(doesn't make sense to me, but that is what we have been told).

    I have already reported the issue to support, just looking to see if others are experiencing the same issue or have tried it because I am hoping for a quicker solution than waiting the support team.

    Thanks

     

    • rraghvani's avatar
      rraghvani
      Icon for Champion Level 3 rankChampion Level 3
      4 months ago

      Their documentation is not always up-to-date! However, if you have confirmed with Support, then it should support it!

      My guess is, is that TC is broken.