I'm on a Kubuntu 11 system and trying out my first Qt Quick project. As this is Kubuntu I'm just running with the Qt that came with it, which has worked fine so far.
I asked Qt Creator to create the sample "Hello World" project from Qt Quick. But the design button was grayed out, as were the run buttons.
At first when I went into the Projects menu under "Run Settings" it said Qt version: [Invalid Qt Version]. Pushing the "Manage Qt versions" button brings up a tree control that looks like this:
v -- Auto-detected
| |
| +---Qt in PATH /usr/bin/qmake-qt4
|
+--- Manual
At the bottom of the dialog it says "Found Qt version 4.7.2, using mkspec linux-g++ (Desktop)"
I found out that I could get the "Invalid Qt version" message to go away by manually choosing to install QmlViewer from the app repositories. You'd think it would say something more like "Qml Viewer not found, please install it" but...oh well. Now it says Qt Version: [Qt in PATH].
So that's fixed, and the Qml app runs. But the "Design" button is still grayed out. Qt Designer is installed as an application, and its plugin shows in the "About Plugins..." list. The design button is enabled in ordinary (non-Qt-Quick) projects when I click on a form file, just not for .qml files.
in the QtCreator, go to Help -> About plugins -> Select "QT Quick".
Restart QtCreator and then select the ui.qml files. It should work now
In my case it wasn't showing up because I had my cpp file open. When I double clicked on the .ui file, the design button became active.
Solved it while writing the question.
To make a long story short: this appears to be a known issue in general with installing Qt Creator through the ubuntu repositories as opposed to using the Qt SDK Installer from Nokia:
http://qt.nokia.com/downloads
(That installer seems to do the work of making sure the proper SDK elements are installed, while the linux package repositories lag in getting things right.)
Another option seems to be building Qt from sources. But uninstalling the Qt Creator I got through KPackageKit and instead using the installer from Nokia was less involved, and worked for me in this case.
Related
In Design tab the "Window" is missing.
When I click the Design tab -> pop up three windows. three windows
After I close one -> disappear all of them.window title
It doesn't work when I try to drag and drop basic component's...
I reinstall the Qt Creator but the same thing...
Have a look at the following bugreport https://bugreports.qt.io/browse/QTCREATORBUG-26486
Here are some key points from the comments.
Three things you shouldn't have done:
Enable the QmlDesigner plugin (isn't officially supported by Qt Creator anymore, you can use Qt Design Studio)
Open a non-.ui.qml file in QmlDesigner
Open a file with a QtQuick.Window root element, which is not fully endorsed in QmlDesigner.
Support for Qt 5.15 requires a "kit" with a qml2puppet for Qt 5.15.
This setup is only properly supported and tested in Qt Design Studio.
If you use Qt Creator the puppet will be always built with the same Qt
version as Qt Creator.
QtCreator states are kept in the following locations:
Windows: %APPDATA%\QtProject and %LOCALAPPDATA%\QtProject\QtCreator
Linux: $HOME/.config/QtProject
macOS: $HOME/.config/QtProject
Please review those locations and backup/rename/clean up.
You should find this restores your Qt Creator to 'factory' conditions.
There is an Example tab at the Qt Creator(2.6.1)'s Welcome page, which is supposed to show the already made Qt Project Examples. But whenever I click on that, Qt creator closes automatically. Sometimes it shows the Example projects for 1 or 2 seconds and the exits. Any idea?
You probably need to configure Qt Creator to find your Qt installation.
Compiler configuration for Qt Creator
And you might need to get the msvs compiler, too.
http://www.microsoft.com/visualstudio/eng/products/visual-studio-express-products
They now have the mingw version available for windows with Qt 5.0.2.
http://qt-project.org/downloads
Also if you installed Qt without the examples that may also cause this error.
Hope that helps.
My goal is to be working on / debugging qt creator plugins and, maybe, editing / debugging qt creator source code. Towards this end I've tried a couple of things:
Downloading source for the qt sdk and qt creator, compiling each, and then making a qt creator plugin project and hooking everything together by hand. This got complicated pretty quickly (I tried to keep my plugin project outside the qt-creator/src/plugin/ folder) and doesn't really get me to a nice spot in terms of debugging.
Using an installed version of the qt creator to open the qtcreator.pro that came along with the source, adding a qt creator plugin as a sub project, and building everything from the already installed version of qt creator.
I like the second approach a lot because I have control over everything but I can rely on qt creators tools that make projects, enhance debugging, etc. There's just one small problem...
When I run my shiny new build of qt creator (with my plugin project) from inside the installed version all I get is a popup called "qtcreator_process_stub" that says "This is an internal helper of Qt Creator. Do not run it manually. Press to close this window..."
So I'm not really sure how to debug my build of qt creator from my instance of qt creator. Any ideas? Note: if I run the generated Qt Creator.app I get a functioning instance of qt creator with my plugin loaded properly.
I believe this was a versioning problem. I had an older version of the ide installed and was using it to build and debug a newer version of the ide.
I was able, in the older ide, to launch and debug the new ide as an external process through the debug menu... but that was mildly annoying.
Once I installed a new version of the ide I was able to debug like normal.
Qt was messing up on Windows so I deleted it and re installed it with the qt libraries and Qt Creator. Now, whenever I try to open my old project, I get the error that "Qmake is does not exist or is not executable", and none of the Qt headers can be located.
Assuming you're using a recent version of Qt, such as version 4.7.4, and a recent version of Qt Creator, such as the branch 2.3 .*.
Probably somewhere in this process, Qt Creator or the settings for this specific project lost the reference to Qt install.
We first need to find out if Qt Creator knows where Qt is installed. Go to Tools > Options.... Then click in Qt4. Here will show all installed and detected Qt versions.
As you can see, I have one Qt version installed (4.7.4), which was automatically detected.
If you do not have any installed version, you need to indicate a one manually. Simply click Add and point it to the right qmake.exe. Use the paths of the figure as reference. If you are developing a windows/mingw application, just need to add the qmake.exe associated with mingw (c:\qtsdk\desktop\qt\4.7.4\mingw\bin\qmake.exe on my computer) and remember the Version name, we'll need that in next step.
After that, open the project and click on Projects in the lateral bar. You need to Substitute the Qt version. Click on Manage next to it and select the correct version. This should resolve the problem.
Any trouble just comment. Sorry about the creepy english.
This tutorial here shows how to add toolchains to Qt Creator. I didn't need that, since my installed MinGW automatically shows up there (I checked the path and it's right).
How do I make my project compile with it? I checked the projects tab on the left, and under none of the build configurations do I get the option to use MinGW (only Visual Studio).
Then I went to Tools->Options->Build and Run->Qt Version, and tried adding a Qt version for MinGW, but I simply don't have a qmake.exe for MinGW (or do I, and I'm just not aware?).
How can I make Qt Creator use MinGW?
Note: I have the Qt SDK.
Just to add a bit more specific info here. When I originally installed the QtSDK on windows I only had the MVSC option for building. To fix this run the Update QT SDK program and pick the Package Manager option, hit next. Expand "Qt SDK" -> "Development Tools" -> "Desktop QT" -> "Your QT Verision (mine is 4.8.0 (Desktop) at time of writing)" and you should only see a check box next to your Qt version for MSVC. Also check the MinGW option and hit next at the bottom. This will download and install mingw build tool chain for qt creator. You will then have the option to choose MinGW builds instead of MSVC.
In order to update Qt, and install mingw support, on windows, you will go to programs and features, find Qt, and right click on it. Click on change, and then hit next until you get to the "Setup - Qt" page. Click on "Add or remove components" then "Next". Wait while it updates "meta information" and then click the arrow next to the version you want to install qt for and check the box for the version of mingw you have (or everything to be safe). Then hit next and then update.
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