[Qt-interest] [newbie] invalid use of incomplete type ‘struct Ui::NN’

[Wojciech Waśko]

Hi,

It's my first try with Qt and I'm trying to write a simple program which
would import a text file and do some stuff with its content. Whatever.
Anyway, I'm stuck on the following error(s):

(...)/main.cpp:24: error: invalid use of incomplete type ‘struct Ui::NN’
and
(...)/nn.h:8: error: forward declaration of ‘struct Ui::NN’

I've been googling for about an hour now and can't find anything related.

Here are my files:
*-------------> main.cpp*
#include <QtGui/QApplication>
#include <QtCore/QFile>
#include <QtCore/QTextStream>
#include "nn.h"

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    NN w;
    w.show();
    return a.exec();
}

void NN::loadTextFile()
{
    QFile inputFile(":/input.txt");
    inputFile.open(QIODevice::ReadOnly);

    QTextStream in(&inputFile);
    QString line;
    while (!in.atEnd())
    {
        line = in.readLine();
        ui->textEdit->setPlainText(line);
    }

    inputFile.close();
}
-------------> end main.cpp

*-------------> nn.cpp*
#include "nn.h"
#include "ui_nn.h"

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

NN::~NN()
{
    delete ui;
}
-------------> end nn.cpp

*-------------> nn.h*
#ifndef NN_H
#define NN_H

#include <QtGui/QMainWindow>

namespace Ui
{
    class NN;
}

class NN : public QMainWindow
{
    Q_OBJECT

public:
    NN(QWidget *parent = 0);
    ~NN();

private:
    Ui::NN *ui;
    void loadTextFile();
};

#endif // NN_H
-------------> end nn.h


Help, anybody?

dare2be

-- 
Wojciech Waśko,
wojciechwasko at gmail.com
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