@ham13 said in type_traitsFile not found:

I'm using qtgreato,r with the compilers noted in my last post, to build the project from it's .pro file.

Your last post says you are using CLang 11 for C++ and your choice of Qt qmake says you are using GCC.

@ChrisW67 said in type_traitsFile not found:

So, when you build your project, exactly how is the compiler invoked?

Still unanswered but the next step will make this obvious.

@ham13 said in type_traitsFile not found:

If there is another way to build this project without using qtcreator?

Sure.

mkdir /tmp/build_dir cd /tmp/build_dir /home/XXX/qt/6.6.1/gcc_64/bin/qmake /path/to/source/project.pro make

(Exactly the same sort of steps that Qt Creator takes on your behalf).

@SGaist said in QChart and series replace issue:

@dmitttri I was rather thinking about QWidget::setUpdatesEnabled.

Thanks, I will try it!

@SGaist Yes
I found a bug report that describes the problem I encountered: https://bugreports.qt.io/browse/QTBUG-113980?jql=text ~ "qml android play video"

It says that it is fixed in Qt6.6.1 That does not seem the case as I got exactly this problem in 6.6.1

You're spot on. Moving the qt6 source and the build dir to another directory (without the C++ in path) and configure runs without error!

@oniongarlic Sometimes you cannot build natively. A raspberry pi model 4b with 1 gb of ram cannot compile qt, it cannot even build cmake from source without running out of memory.

@Eric-Yin I would start with the tool documentation.

Hi and welcome to devnet,

From experience you are missing one -L parameter with the path to where the OpenCV libraries can be found in your LIBS variable.

If that's not that, then please share your .pro file.

Hi,

Can you show how your CMakeLists.txt file looks like ?

@JonB correct ... forget a row .... problem was need to use model_2, model_1 etc in a lot of void so need to call them as per objectname .... tomorrow try with debugger ....

@jars121 Change "SELECT * ..." to SELECT column1, column2 ...", selecting only those you need. Querying by name is good practice for a number of reasons. Then, things I would try:

Rebuild any index on the table to eliminate corrupted indexes. Try the query with a WHERE condition that bisects the data (using a key in some way) to isolate a trigger row if there is one. It looks like any row where TEST_DATE is in this year is suspect. That might be one row that you can already pinpoint, but it may also be a red herring. Try the query one column at a time to isolate a trigger column if there is one. IMHO Columns most likely to break things would be dates/times or blobs.

@huangbinbin how is Text control created? With what widget or qml item? Can not you simply set its background to be transparent?

@mpergand D:\projects\QT\MotorolaEmulatorGithub\MotorolaEmulator\MotorolaEmulator\mainwindow.cpp:123: error: No member named 'width' in 'QFontMetrics'
I used horizontalAdvance(' ') and it seems to work. Thanks!

I had a similar problem, as I was trying to build the small project of
https://github.com/LAmmeraal/sourceCode/blob/master/changeline.cpp
in Qt6 , I could see the error, and in the end what I did is substituting the line:

//QRect rec = QApplication::desktop()->screenGeometry(); // for Qt5 QRect rec = QApplication::primaryScreen()->geometry(); // Qt6 , along with the #include <QScreen> at the top

@MMD18 hi,

Because nothing has changed on that front for QLabel as it is not meant for complex html rendering. If you really need CSS styling, using WebEngine would be more indicated.

@Pl45m4 said in new a model to a simple table ;:

integrated in the parent/child hierarchy and therefore deleted with parent (i.e. Dialog class)?!

Yes, but that's imo much too late here.