setupUi is not a member of my QT application

lfreeman6490

I am trying to build my QT application, it is throwing an error in my Pathloss.cpp file

#include "pathloss.h"
#include "ui_pathloss.h"

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

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

and then directs me "see declaration of 'Pathloss'" in my pathloss.h file

namespace Ui {
class Pathloss;
}

class Pathloss : public QWidget
{
    Q_OBJECT
    
public:
    explicit Pathloss(QWidget *parent = 0);
    ~Pathloss();

private:
    Pathloss *ui;
};

The exact error message is

C2309: 'setupUi': is not a member of 'Pathloss'

JoeCFD

@lfreeman6490 said in setupUi is not a member of my QT application:

private:
Pathloss *ui;

private:
Ui::Pathloss *ui{};

make a habit to add {} to initialize all pointers.

lfreeman6490

I changed that and all the other instances of 'Pathloss' to 'Ui::Pathloss' and still am getting the same error. If I change only that then I get a few other errors like

'Pathloss::ui' member could not be initialized

'initializing': cannot convert from 'Pathloss' to 'Ui::Pathloss'

along with still having the error from setupUi

JoeCFD

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

lfreeman6490

With that I get that there is no appropriate default constructor available

JoeCFD

@lfreeman6490 always make destructor ~Pathloss(); virtual
virtual ~Pathloss();
What is the error message?

lfreeman6490

The specific error messages are

C2512: 'Ui::Pathloss' no appropriate default constructor available

C1903: unable to recover from previous error(s); stopping compilation

thanks for your help so far, i appreciate it

JoeCFD

I can not see your ui file

lfreeman6490

I have a 'ui_Pathloss.h' file that is about 800 lines so I can't really post that one. My 'pathloss.ui' file is my design and GUI that I created

JoeCFD

@JoeCFD said in setupUi is not a member of my QT application:

Ui::Pathloss

this constructor Ui::Pathloss() does not exist or defined in private section

You need something like the following code in the header:
QT_BEGIN_NAMESPACE

class Ui_FileDeleteProgressDialog
{
public:
Ui_FileDeleteProgressDialog(){}

void setupUi( QDialog * dialog )
 {    
 } // setupUi

};

namespace Ui {
class FileDeleteProgressDialog: public Ui_FileDeleteProgressDialog {};
} // namespace Ui

QT_END_NAMESPACE

lfreeman6490

Where in my code should I add that? Would that go in my header file?

SGaist

Hi,

@lfreeman6490 said in setupUi is not a member of my QT application:

ui(new Pathloss)

It should be:

ui(new Ui::Pathloss)

You are missing the namespace for that class.

lfreeman6490

@SGaist Doing that tells me that there is no appropriate default constructor. Do I have to change all instances of 'Pathloss' to 'Ui::Pathloss'?

JoeCFD

@lfreeman6490 They are defined in ui_pathloss.h. Open it and check if the class name is Ui_Pathloss. It is possible that the class name is Ui_pathloss?

lfreeman6490

@JoeCFD the class is named 'Ui_f_pathloss'. This was automated by QT so I didn't change it

JoeCFD

@lfreeman6490 That is a typical Qt error. You define it in Qt Designer with the matching class name.
Load your Qt ui file back to Qt Designer and set class name properly.

lfreeman6490

@JoeCFD So I should change that to Ui_Pathloss?

to look like this?

namespace Ui {
    class Ui_Pathloss: public Ui_Pathloss {};
    class FileDeleteProgressDialog: public Ui_FileDeleteProgressDialog {};
} // namespace Ui

JoeCFD

@lfreeman6490 You do not do this. Load your Qt ui file back to Qt Designer and set class name properly.
your class name is f_pathloss in the ui file. This is even not a good name.

lfreeman6490

@JoeCFD I did that and nothing changed, still getting the same error

SGaist

Fix what you have in your pathloss.h file to match what you have in your ui_pathloss.h file.

But it sure does look strange that there's such a name mismatch.