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

[JoeCFD]

@Mlibu you can not rely on that.

sudo apt install build-essential g++ gcc

maybe more: cmake, git, meld etc.

default login is wayland. I guess you know how to switch to Xorg.

[Mlibu]

@JoeCFD Yeah I have tried both wayland and x11 in Manjaro.

[JoeCFD]

@Mlibu create a shell script to collect all needed libs and packages and run it every time you install a new Linux.

[Mlibu]

@JoeCFD So there is no document on which libraries are needed?

Also I did the Ubuntu install but now I'm getting:

:-1: error: Project ERROR: Unknown module(s) in QT: quick

But this is my only qml file:

import QtQuick 2.15
import QtQuick.Window 2.15

Window {
width: 640
height: 480
visible: true
title: qsTr("Hello World")
}

Everything I can think of is installed. g++ and cmake are there.

I listed all the packages beginning with qt5 and there doesn't seem like anything else that would provide QML.

[Mlibu]

@JoeCFD But you can't tell me what is needed.. So how do I know what to put in the script?

[JonB]

@Mlibu
Does

sudo apt install qtdeclarative5-dev

help?

[Mlibu]

@JonB Yes, now there is no more error and it builds but the design page doesn't activate at all, even if I open the qml file.

[JonB]

@Mlibu
Like I said, I have never used or installed QML. But if you keep your Ubuntu in this state I will just install that qtdeclarative5-dev tomorrow and see where I find myself :)

[Ronel_qtmaster]

@Mlibu you only need to activate the plugin by checking it and click on okay.You do not need to click on install since the online installation comes with qtdesign studio and the plugin.So no need to click on install just enable it and restard Qt

[Mlibu]

@JonB So a question... I found this posted on the qt creator 6 release:

https://www.qt.io/blog/qt-creator-6-released

"The integrated Qt Quick Designer is now disabled by default. Qt Creator will open .ui.qml files in Qt Design Studio. This is a step towards a more integrated workflow between Qt Design Studio and Qt Creator (video). Qt Quick Designer is still there, you can manually enable it again by checking the QmlDesigner plugin in Help > About Plugins."

Yet when I try to activate the plugin, there isn't one to activate.

So if this was underway in qt creator 6, is it going to do anything different than qt design studio does anyway? Is this even supposed to work in qt creator 12?

I watched some videos on qt design studio and they seemed to be more geared towards creating components than creating a full application. Also a lot of the functionality to migrate from photoshop is commercial and that won't be avilable.

[Ronel_qtmaster]

@Mlibu Exacty what i was saying above.Just check qml designer on plugin side, click on ok and restart Qt.it WILL locate your Qt Design studio

[Mlibu]

@Ronel_qtmaster But what I said was, there is no Qt Quick Designer plugin to check in this install.

[Ronel_qtmaster]

@Mlibu may i see the list? it is weird if it is not present on windows installation.It is QMLDESIGNER

[JoeCFD]

@Mlibu When did you install it?
sudo apt install qttools5-dev-tools

now you can write down all libs and packages you need into a shell script.

[Mlibu]

@Ronel_qtmaster Sorry I mixed up the threads. The plugin is missing on Ubuntu 12.04. I have it on windows, but then the page doesn't work properly.

[Mlibu]

@JoeCFD said in I'm back with a GPU.. Qt Creator still not working:

qttools5-dev-tools

qttools5-dev-tools was already installed as a dependency from something else.

[JoeCFD]

@Mlibu Actually, Qt 6 is old in Ubuntu 22.04. You can install Qt 6.6.2 with Qt online installer. I purged Qt6 in Ubuntu 22.04 and installed Qt 6.6.2.

[Mlibu]

@JoeCFD I think I found a couple other threads with the problem I am having.

https://forum.qt.io/topic/152332/item-could-not-be-created-please-help-me

I don't think it's to do with the install at all really. Rather, Qt is failing to interpret the small sample file and the rendering is messed up because it is confused about how large the window is. The error "item could not be created" on the window is the key I think.

Anyone who solved it seemed to switch from "Use fallback emulation layer" to "Use QML emulation layer that is built with the selected Qt" in Edit->Preferences->Qt Quick->Qt Quick Designer. I just don't quite know how it works or what to set it to yet.

Some people have run qmlpuppet on its own and seen if it has errors. Will try tomorrow.

[Mlibu]

@Mlibu
So I just found this bug report, last reported in February!

https://bugreports.qt.io/browse/QTCREATORBUG-30202

Qt recommends to use Qt Design Studio! But it's not the same?? To my knowledge Design Studio doesn't even support adding signals and slots.

UPDATE: This is so very confusing... I found this page:

https://cutehmi.kde.org/docs/3/doc/md_using-qt-creator-in-design-mode.html

He says you need to build in release for the Designer to work so I did a release build but that didn't work for me. Then he says you need to set the QML emulation layer, which I was kind of on to.... but set it to what?? he doesn't say!

[Mlibu]

@Mlibu Ok well I thought I had figured it out with this forum comment:

https://forum.qt.io/topic/148745/cannot-connect-to-qml-emulation-layer-qml-puppet

So I thought I needed to change the 'qml emulation layer' to the directory that holds qml2puppet which I found under QtQuickDesigner directory. But that didn't work either.

I also tried the puppet in /usr/share/qtcreator/qml/qmlpuppet/qml2puppet and that didn't work either.

I think I need to resign myself to the fact that there is no possible combination under which this will work for me. I have exhausted every measure I can find. I will either do QML by hand or use Design Studio.

It's a funny thing this problem. There are a few comments out there that Qt Creator is a piece of sh%t and they can't get it to work and they are just going to use something other than Qt and they basically have the same problems I have. Then there is a youtube video of someone having it work fine from 2023. I don't know how this all adds up, but this is taking time from other important work that I have.

I did ./QtDesignStudio/qt6_design_studio_reduced_version/bin/qml2puppet-4.4.0 --test

It looks fine. All libraries there and loaded.

After this I also tried to remove build directories and start a new project but it still doesn't work. There are just so many conflicting comments and instructions I don't know what to do any more.

Please, please.. if anyone can figure out what my problem may be, I would love to hear the answer. But I have had to put way too much time into this.

I'm going to tuck my tail between my legs and go back to Manjaro KDE now. I'll leave a small partition to test other OSes with if anyone has any other ideas.