I'm back with a GPU.. Qt Creator still not working

Tink

Well let me add this from the arch wiki as my final comment :)

source: https://wiki.archlinux.org/title/System_maintenance

Use the package manager to install software

Pacman does a much better job than you at keeping track of files. If you install things manually you will, sooner or later, forget what you did, forget where you installed to, install conflicting software, install to the wrong locations, etc.

Mlibu

@Tink This was a fresh install of manjaro. All I did was download the online installer and install minimum packages. I install them into /home/user/Qt.

I check next to the following:

Qt Design Studio 4.4.0
Qt 6.6.2 with only Desktop gcc checked under it
Qt Creator 12.0.2

That's it.

When I run qtcreator it does strange things. There isn't a lot I can remove from Manjaro because it needs qt6-tools, qt6-base, etc etc for the OS. And I just delete /home/user/Qt if I'm going to try a reinstall.

Tink

@Mlibu you tried the online installer, what can you lose if you try the other approach? Once you done that you can be certain it is not a wrong installation.

Mlibu

@Tink Ok but the package manager has never worked for me. I started by doing that.

No examples, no kits, and no documentation on how to set it.

Ronel_qtmaster

@Mlibu i feel that you did not selected all the required packages while installing.could you send an image of the packages you have selected while installing?

Mlibu

@Tink I'm going to try to install everything but Qt Creator with the online installer then install creator with the package manager. There is nothing else to install in the package manager other than qt creator and optional qt modules..

Mlibu

@Mlibu

Ronel_qtmaster

@Mlibu okay you have installed desktop kit properly.can you locate it in the installation folder?Because qt would normally have detected it

Mlibu

@Ronel_qtmaster I uninstalled and I'm reinstalling everything but qt creator with the installer right now. It will be awhile. After it's done I will try installing qt creator from the package manager again. Note that I am using the Manjaro add/remove programs. I trust that it uses the package manager behind the scenes.

I'm supposed to be executing qt creator and not qt design studio right? Then when I start QT I add the Qt Quick Designer plugin.

Thanks for the help by the way. I'm beginning to lose hope.

Ronel_qtmaster

@Mlibu normally it should come with every packages working fine.Have you tried other versions of qt6?

Mlibu

@Ronel_qtmaster I have not done that. I will keep that in mind. I would really prefer to use the latest version though that could tell us something.

Ronel_qtmaster

@Mlibu ok but latest versions often have some problems till they are fixed and stable

Mlibu

@Ronel_qtmaster Ok so I installed everything in the screenshot except for qt creator and then I installed qt creator with the manjaro package manager. Still there are no examples and there is no kit available. When I indicate to start a QtQuick app there is no 'supported platforms' listed and when I select the kit there is none to select.

Should I try Qt 6.5.3 instead of Qt 6.6.2?

One thing I have noticed is that there is a ~/.designer directory. I have not been clearing that, and there is a crash report (maybe old) where a corrupt templates.xml in there can cause problems.

Mlibu

@Ronel_qtmaster I tried Qt 6.5.3 and it's still not working.

In fact, the design screen doesn't even draw properly until I build the project. It shows a single empty item when I first start it and none of the controls are responsive at all until I build it. Then it shows a window with a button a field and a label. When I move a rectangle onto the window and go to the properties page to change its color, it works for a couple seconds longer. Then there is a momentary hang where nothing is responding, then Qt Creator is gone. This is happening on every system I try it on and I just want to get coding.

Mlibu

@Ronel_qtmaster I just found this error in my journal log right when starting Qt Creator:

Mar 12 15:21:04 cutie plasmashell[6029]: Failed to initialize instances shared memory: "QSharedMemory::handle: doesn't exist"

And I get this when it dies:

qt.accessibility.atspi: Error in contacting registry: "org.freedesktop.DBus.Error.Disconnected" "Not connected to D-Bus server"
PropertyEditor: invalid node for setup
qtc.imagecontainer.debug: void QmlDesigner::readSharedMemory(qint32, QmlDesigner::ImageContainer&) Not able to create image: 0 0 0
qtc.imagecontainer.debug: void QmlDesigner::readSharedMemory(qint32, QmlDesigner::ImageContainer&) Not able to create image: 0 0 0
qtc.imagecontainer.debug: void QmlDesigner::readSharedMemory(qint32, QmlDesigner::ImageContainer&) Not able to create image: 0 0 0
qtc.imagecontainer.debug: void QmlDesigner::readSharedMemory(qint32, QmlDesigner::ImageContainer&) Not able to create image: 0 0 0
qtc.imagecontainer.debug: void QmlDesigner::readSharedMemory(qint32, QmlDesigner::ImageContainer&) Not able to create image: 0 0 0
qtc.imagecontainer.debug: void QmlDesigner::readSharedMemory(qint32, QmlDesigner::ImageContainer&) Not able to create image: 0 0 0
qtc.imagecontainer.debug: void QmlDesigner::readSharedMemory(qint32, QmlDesigner::ImageContainer&) Not able to create image: 0 0 0
qtc.imagecontainer.debug: void QmlDesigner::readSharedMemory(qint32, QmlDesigner::ImageContainer&) Not able to create image: 0 0 0
qtc.imagecontainer.debug: void QmlDesigner::readSharedMemory(qint32, QmlDesigner::ImageContainer&) Not able to create image: 0 0 0
qtc.imagecontainer.debug: void QmlDesigner::readSharedMemory(qint32, QmlDesigner::ImageContainer&) Not able to create image: 0 0 0
qtc.imagecontainer.debug: void QmlDesigner::readSharedMemory(qint32, QmlDesigner::ImageContainer&) Not able to create image: 0 0 0
zsh: segmentation fault (core dumped)

Mlibu

@Ronel_qtmaster
So apparently this is an issue in Qt Creator built with Qt 6.6.0+. Bug report

So the only way to create QML is Qt Creator 11 or Qt Design Studio or manual.

jsulm

@Mlibu Did you make sure you started QtCreator installed using Qt Online Installer? QtCreator from your distribution will not detect Qt installed using Qt Online Installer (but you can configure a Kit for this Qt installation manually).

Mlibu

@jsulm I have been doing this for a month. I have tried both options 20 times in every combination. I have installed all the packages through manjaro, and I have removed all those packages and installed everything except the optional stuff through the central installer. I tried both custom install and selecting both 'Desktop Development Environment' and 'Qt Designer'.

The answer is that Qt Designer just doesn't work through Qt Creator 12.0.2. There were a couple bug reports and the first one dates back to December. But since Design Studio works standalone they probably aren't that motivated to fix it. I just didn't understand that Qt Design Studio was the exact same thing. Also I read confusing things about it. Anyhow.

From what I see, you just cannot use Qt Designer with the plugin through Qt Creator 12.0.2. If you come after me, don't waste a month figuring that out.

JonB

@Mlibu
Can we start with some basics Sometimes you write about Qt Designer and sometimes about Qt Design Studio. They are different products. So which one are you really trying to install or wanting?

Designer is just that part of Creator which allows you to design widgets and produce code from them. That is all I, and the majority of Qt-ers, use.

Design Studio is a different beast. It's for more advanced design (including 2D & 3D). I haven't used it, I believe you produce QML from it. I don't even think it has anything to do with Qt Creator, I believe it's an external component with its own interface. Do you really want/need this?

If you just want Qt + Creator I would have thought you would get pre-supplied versions of these with your Linux distro. Certainly that is the case with Ubuntu, I don't know about your distros.

I have always just downloaded (apt get under Ubuntu) the supplied version of Qt plus Creator. No compilation, no problems, it just works. May not be the latest Qt version, depends on distro and date. But an awful lot simpler than getting other stuff from The Qt Company (never had to do that or go to their site) and/or building anything yourself.

You do not need a GPU or anything special. Certainly not for Qt with widgets, I don't use QML but from what I see that does not require a GPU either (I think it can use one if present but can manage without).

What about just trying to install and get working the distro's Qt + Creator, without worrying about QML/GPU for now, to verify that works for you?

Mlibu

@JonB I want to install Qt Creator and use the design tab to build QML widgets with Qt6.

I haven't been able to see a good description of the difference. In the Qt bug report I was referring to, they said to use Qt Design Studio as an alternative to Qt Designer within Qt Creator.

Qt Designer and Qt Design Studio are different things then? Then why would Qt suggest that as an alternative instead of fixing a bug?

And Designer seems to be a standalone product now. There is a separate package for it in Manjaro and in the Qt installer.

I think I would prefer to use the Designer in Qt creator.

That explains why Qt Design Studio was requiring ui.qml files.

Yeah I was hoping to leave trying another OS as a last resort, because that won't help me since I want to use Manjaro KDE. And yes I have tried all the Manjaro packages for Qt6. When I install through the Manjaro PM I don't get any kits or any examples so it's not configured properly. And if I am supposed to configure them manually then I have not been able to find any instructions on doing so. Also I migrated to unstable manjaro but no dice.

Sorry about being so ignorant of this but it's kind of hard to learn about software if you cannot install it.