Only .pro file in projects pane after creating default application on Ubuntu 24.04. No other project files or source are shown. This message at top of edit pane: Warning: This file is not part of any project. I'm using Qt 5.15.3 Here's how I tried to create project: File / New Project Applucation (Qt) / Qt Widgets Appication / Choose Name: ttt in /home/jimbrown Next - Build system: qmake Next / Next / Next/ Next It said: Files to be added in /home/jimbrown/ttt: main.cpp mainwindow.cpp mainwindow.h mainwindow.ui ttt.pro Finish The cpp h and ui files were created but aren't listed in the projects. If I load a project built in Ubuntu 20.04 or 22.04 I get the same symptons even if I delete the .user file. Here's how I installed Qt (I want to do it from the command line): apt-get -y install build-essential openssl libssl-dev libssl1.0 libgl1-mesa-dev libqt5x11extras5 '^libxcb.*-dev' libx11-xcb-dev libglu1-mesa-dev libxrender-dev libxi-dev libxkbcommon-dev libxkbcommon-x11-dev apt-get -y install qtbase5-dev qt5-qmake apt-get -y install qtchooser apt-get -y install qtcreator This worked in Ubuntu 20.04 and 22.04. In 24.04 lots of things missing and I had to: apt --fix-broken install I'm probably missing some package in Ubuntu 24.04. After days of searching I found a recommendation to install these: apt-get install libqt5quickcontrols2-5 libqt5multimedia5 libqt5webengine5 libqt5quick5 libqt5qml5 Made no difference Many thanks in advance.

I appreciate your willingness to help. I described some experiments that I did to try to understand what's going on and I see that confused the issue. I'll try to answer all the questions but first I have a simple reproducible case that is only on Ubuntu 24.04 and doesn't involve any file not provided by the system. The simple case I did a minimal install of Ubuntu 24.04. Make sure it's up to date apt update apt upgrade Install Qt stuff apt-get -y install qtbase5-dev qt5-qmake apt-get -y install qtchooser apt-get -y install qtcreator Check that Qt is installed .../jimbrown:qtchooser -list-versions 4 5 default qt4-x86_64-linux-gnu qt4 qt5-x86_64-linux-gnu qt5 See where headers are located .../jimbrown:qmake -query QT_INSTALL_HEADERS /usr/include/x86_64-linux-gnu/qt5 Make sure qmake is available .../jimbrown:find /usr/lib -name qmake /usr/lib/qt5/bin/qmake /usr/lib/x86_64-linux-gnu/qt5/bin/qmake I notice no qmake for qt4 but I don't think it matters. reboot the system Run QT Creator Create project by pressing "Create Project" green button. Application (Qt) / Qt Widgets Application / Choose Name: ttt in /home/jimbrown Next - Build system: qmake Next / Next / Next/ Next It shows that files will be added Press "Finish" This shows that although it says there is a project named ttt and a file ttt.pro , there are no Headers, Source or Forms. It also says "This file is not part of any project. ..." That's the failure. The files it says it would create are created: ~/ttt:ls main.cpp mainwindow.cpp mainwindow.h mainwindow.ui ttt.pro ttt.pro.user That's the end of the case. Questions that you asked or additional comments. If I move the ttt directory and it's content to an earlier version of Ubuntu, Qt Creator recognizes the project correctly and can build and run it. Thanks for explaining that a Qt6 Creator could build a Qt5 application or vice versa. I wanted to eliminate that as a possible source of the problem. You asked "How did you create a correct project under 24.04 in the first place if it's not recognized as a valid project?" As I explained above, the project is created correctly. But Creator does not appear to recognize it. So on 24.04, I cannot build an executable program. On earlier versions of Ubuntu, those same files work. Qt Creator is version 13.0.0 I do want to use Qt5 because I'm hoping to get a paying job early next year with a company that uses Qt5. They are currently on Ubuntu 20.04 but I expect them to move to a newer version and I want to be ready. Thanks again for your help.

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Default project fails

Unsolved Qt Creator and other tools

21 Posts 3 Posters 4.5k Views 1 Watching

J jimbrownqtuser

Solved!

The solution was to change the desktop kit so the C++ compiler was GCC instead of CLANG. The C compiler was already set to GCC.

The default app now shows all the files, is recognized as a project and runs.

The suggestion "Check it has found proper Kits?" was the clue that led me to this solution. If I had more experience with Qt maybe I would have thought of that. I certainly didn't suspect that if you had a different compiler selected in the kit that the project display would not show Headers, Sources and Forms.

I read the documentation on kits and learned how to create and modify kits.

Thanks to those who helped. I would not have solved this without you.
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JonB

wrote on last edited by JonB

#21

@jimbrownqtuser said in Default project fails:

The solution was to change the desktop kit so the C++ compiler was GCC instead of CLANG.

Indeed! I can only say that my 24.04 installation (with Qt6) did this already, I never had a problem.
It's obviously not helpful that it creates a project yet then cannot handle it.
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