error: cannot initialize object parameter of type 'Ui_MainWindow' with an expression of type 'Ui::MainWindow'

deleted286

What is the solution of this error? Can anybody help me in this? Thank you

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <iostream>
#include <math.h>

using namespace std;


MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
    , m_timerId(0),
      m_steps(0),
      m_realTime (0.0)

{
    ui->setupUi(this);
    m_timerId = startTimer(0);
    m_time.start();
}

MainWindow::~MainWindow()
{

    cout << "Average time step: " << ( (double)m_realTime ) / ( (double)m_steps ) << " s" << endl;

    if ( m_timerId ) killTimer( m_timerId );

    if ( ui ) delete ui;
    ui = 0;

    //delete ui;
}

void MainWindow::timerEvent(QTimerEvent *event)
{
    QMainWindow::timerEvent(event);

    float timeStep = m_time.restart();
    m_realTime = m_realTime + timeStep / 1000.0f;

    float roll      =  0.0f;
    float pitch     =  0.0f;

    if(ui->pushButtonAuto->isChecked())
    {
        roll  =  180.0f * sin( m_realTime /  10.0f );
        pitch =  90.0f * sin( m_realTime /  20.0f );
        ui->spinBoxRoll  ->setValue( roll      );
        ui->spinBoxPitch ->setValue( pitch     );

    }
    else {
        roll  = (float) ui->spinBoxRoll  ->value();
        pitch = (float) ui->spinBoxPitch ->value();
    }
//    ui->widgetPFD->setRoll(roll);
//    ui->widgetPFD->setPitch(pitch);
//    ui->widgetSix->setRoll(roll);
//    ui->widgetSix->setPitch(pitch);

    m_steps++;
}

JonB

@suslucoder
Which line is the error reported on?

deleted286

@JonB sorry, i forgot to mention
in ui-> setupUi->(this);

JonB

@suslucoder
Hover your mouse over the setupUi word/method. What does the signature report? It should be void Ui_MainWindow::setupUi(QMainWindow *MainWindow)? Did you make changes to, say, the ui_mainwindow.h file? Delete all the files in the build output directory (i.e. debug/release depending on how you are building, where that ui_mainwindow.h is) and rebuild from scratch?

deleted286

@JonB it works! thank you

JonB

@suslucoder
What works? Do you mean the deleting of all intermediate files and rebuilding from scratch?

deleted286

@JonB yes it is.

JonB

@suslucoder
If you changed anything in ui_mainwindow.h this could happen. If you get what seems like an inexplicable error when compiling, wiping the output directory can sometimes resolve. However, this does not apply to normal, run-of-the-mill errors!