No member named 'stackedWidget' in Ui::MainWindow

arjun98

MainWindow is defined as follows:


MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);
}

MainWindow::~MainWindow()
{
    delete ui;
}


void MainWindow::on_login_button_clicked()
{
    ui->stackedWidget->setCurrentIndex(1);
}

This is the error message:
mainwindow.cpp:21: error: no member named 'stackedWidget' in 'Ui::MainWindow'

The following are warning messages:
:-1: warning: Project WARNING: Qt has only been tested with version 10.15 of the platform SDK, you're using 11.1.
:-1: warning: Project WARNING: This is an unsupported configuration. You may experience build issues, and by using
:-1: warning: Project WARNING: the 11.1 SDK you are opting in to new features that Qt has not been prepared for.
:-1: warning: Project WARNING: Please downgrade the SDK you use to build your app to version 10.15, or configure
:-1: warning: Project WARNING: with CONFIG+=sdk_no_version_check when running qmake to silence this warning.
:-1: warning: "/Library/Developer/CommandLineTools/usr/bin/clang" is used by qmake, but "/usr/bin/clang" is configured in the kit.
Please update your kit (Desktop Qt 5.15.2 clang 64bit) or choose a mkspec for qmake that matches your target environment better.
:-1: warning: "/Library/Developer/CommandLineTools/usr/bin/clang++" is used by qmake, but "/usr/bin/clang++" is configured in the kit.
Please update your kit (Desktop Qt 5.15.2 clang 64bit) or choose a mkspec for qmake that matches your target environment better.

The solution I found on other forums was to clean the project, rebuild the qmake, the run in debug, this did not help.

Thank you,
Arjun

Christian Ehrlicher

When the compiler says there there is no such member then I would guess it's right. Make sure that you really have such a widget in your ui file and that the ui_mainwindow.h is regenerated afterwards (delete it to be sure)

mrjj

Hi
Also check that none of the build files ended up in the project folder.

Did you try one of Creators' examples ? Can they run ?

Seems you are on macOS and using another Xcode/sdk than
expected ?

arjun98

@Christian-Ehrlicher My apologies, I did not fully understand your answer. Screen Shot 2021-03-17 at 11.48.07 AM.png
Is this what you mean by have such a widget? And what do you mean regenerate the ui_mainwindow.h?

mrjj

@arjun98
Hi

what do you mean regenerate the ui_mainwindow.h?

Delete any ui_xxx files in build folder (or just all files)
make sure no ui_xxx files are in the project folder.
Then run qmake from build menu

And then check file been recreated.

arjun98

This post is deleted!

arjun98

@mrjj Thank you

arjun98

@Christian-Ehrlicher Thank you, I had a typo in the widget name in the ui file which I was able to find in the ui_mainwindow.h file.