Installation and Deployment

SOLVED? A test application is now complaining about lack of "CLANG" . After loading gcc essentials - still complains about "clang" . The remedy " did you forget setting the environment ?" What "environment "? Where ??

@qtFanatic said: It would make sense that the installer gives an error message instead of failing unexpectedly. Agreed, but hey, can't win them all ;)

Hi and welcome to devnet, I don't know whether you have the Wayland backend as well for the installer, one thing you can do is try to pass --platform wayland as parameter to the installer executable. As for the rest, no, you shall be able to use and develop on Wayland without issue. It's one of the supported backend. If it does not pick it up automatically, you can force its use.

@artwaw update or adding new component complete successfully when AV disabled

Found the problem. It looks like the ndk that I have installed was missing some files. After downloading it again the compilers are auto-detected and everything works fine. Thanks @J-Hilk

Yes it does, that's the weird thing.

@Zeyad-Khaled when you do, what @Christian-Ehrlicher said, you will find the following [image: 414890ad-58e1-43f0-84af-4cdb122def64.png] seems like your xml_check_close_outer std::stack is empty and you try to access the non existent top() element, what then crashes. At least, when your code, that you posted is a 1:1 copy and paste :D

@Leon-Abascal thank you Leon, now works

@Peter-Smithson Oh - I found another page - https://doc.qt.io/qtinstallerframework/ifw-cli.html (well actually - I did --help, found an option and then googled it to find the page!) The use-cases page isn't very clear. If you only want the components listed to install (with dependencies), you must add the --no-default-installations option.

Here's a summary: https://tldrlegal.com/license/gnu-lesser-general-public-license-v3-(lgpl-3)

Thanks a lot.

Thanks, I had found only the archive (https://download.qt.io/archive/) which reports only older versions!

Well, if it is impossible to use dll for gui, then I will have to write c++ exe and provide interaction with python...

Completely uninstall QT and reinstall it, everything is fine

Hi again, I have managed to run the qt application now, after following the guides using a brute force method, quick and dirty way, by copying all the qml and dlls files/dir from my qt installation directory to the deployment dir. https://wiki.qt.io/Deploy_an_Application_on_Windows But i still don't know why windeployqt doesn't work as it should., so this looks like a problem of the windeployqt tool which failed to copy the necessary files/dirs to the deployment directory. And i don't think it is fun to do the clean up after as mentioned in the guides after putting everything there, as that is what windeployqt should be meant for. @raven-worx said in Failed to deploy Qt application using windeployqt: @pfnus said in Failed to deploy Qt application using windeployqt: except additional errors qrc:/main.qml:124:6: Type PermanentPanels unavailable qrc:/panels/MyPanels.qml:13:5: Type MyControls unavailable qrc:/panels/MyControls.qml:20:1: Type SidePanel unavailable actually you should have this errors already before. I dont see why you shouldnt. I have a lot of qml files inside different sub-directories, and i point --qmldir to thje top level qml dir, is that an issue? Thats ok. windeployqt scans the folder recursively for all import statements. When you now have files in the filesystem without having them in a qml module (with a qmldir file) they wont be picked up. Easiest would be to put them alos into the qrc. The errors like Cannot install type 'HorizontalHeaderView' into protected module 'QtQuick.Controls' version '2' are a mystery to me. How do you get the error messages actually? You ran windeploy and then simply start the binary? Where do you see the error messages then? I run the exe from cmd line like this; where D:\myapp\test-windeployqt contains all the deployed qt files/dirs: D:\myapp\test-windeployqt\myapp.exe

Actually, I'm ok with it. It's to time consuming to retry

@net80u As @jsulm says. Indeed a while ago at https://www.qt.io/blog/qt6-development-hosts-and-targets Both Windows 7 or 8.x version support will not be available for Qt 6. Microsoft discontinued the support for both Windows versions some time ago, and as a vendor, we can no longer maintain support for these windows versions in Qt 6.

Tanks @SGaist

I just came across this issue. The anwser is in the qtbase/configure, you can see the error messge in this file. Delete the parent derecotory of the build can solve this issue.

Hi, so I've found another thing. I open up dependencies to look for the dll files that need to be added, and the only ones are not the "critical" Qt files. I only need to add 3, but that still doesn't make it standalone. Do I need to type in something else when I'm configuring the installation? [image: 4210712b-6fd6-4cd5-9235-c059ac736bc7.png]