setupUi is not a member of my QT application

[SGaist]

Did you modify anything else than what I suggested ?
What is your actual code ?

[lfreeman6490]

@SGaist main .cpp

#include "pathloss.h"
#include <QApplication>

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

pathloss.cpp

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

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

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

pathloss.h

#ifndef PATHLOSS_H
#define PATHLOSS_H

#include <QWidget>

namespace Ui {
class Ui_Pathloss;
}

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

private:
    Ui::Ui_Pathloss *ui;
};

#endif // PATHLOSS_H

my ui_Pathloss.h file is too long to post here, but this is the namespace at the bottom

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

QT_END_NAMESPACE

[JoeCFD]

This post is deleted!

[JoeCFD]

@JoeCFD Change your class to Pathloss in your ui file, not Ui_Pathloss.

[lfreeman6490]

@JoeCFD
throws an error at

{
    ui->setupUi(this);
}

"C2664: 'Ui_Ui_Pathloss::setupUi': cannot convert parameter 1 from 'Ui_Pathloss *const' to 'QFrame *'

[SGaist]

Beside what wrote @JoeCFD, it seems you are piling up the various suggestions you got.

You should go back to your starting state before doing anything else.

You should also take the time to read the Qt Designer documentation to understand what you should get.

[JoeCFD]

Your ui file looks similar like this:
https://doc.qt.io/archives/3.3/designer-manual-16.html
Widgets
<!DOCTYPE UI><UI version="3.1" stdsetdef="1">
<class>WinIntroPage</class>
<widget class="QWidget">
<property name="name">
<cstring>WinIntroPage</cstring>
</property>

see the class tag: change it from f_pathloss to Pathloss
That is the only thing you need to do. Then recompile your code.

[lfreeman6490]

@JoeCFD I have no instances of f_pathloss, I changed them all to Pathloss

@SGaist This basically is where I started from. Every change undoes the previous one. The difference between this and the original version is the 'f_pathloss' is now just 'Pathloss'

[JoeCFD]

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

ui_Pathloss.h

do not change ui_Pathloss.h because it is generated. Change pathloss.ui or Pathloss.ui file
Your class name has to match to the name defined in
<class>*****</class> in pathloss.ui or Pathloss.ui file

[SGaist]

Depending on what that interface contains, it could be simpler to just rebuilt it from scratch and be done with it.

[lfreeman6490]

@SGaist Yeah I think I might just do that. I've been at this all day. Thanks for trying to help. I appreciate it @JoeCFD

[JoeCFD]

======================TestWidget.h============================
#include <QWidget>

#include "ui_TestWidget.h"

class TestWidget : public QWidget
{
Q_OBJECT

public:
explicit TestWidget(QWidget *parent = 0);
~TestWidget() {}

private:
Ui::TestWidget ui;
};

[JoeCFD]

===================TestWidget.cpp=============================
#include "TestWidget.h"

TestWidget::TestWidget( QWidget * parent )
:QWidget( parent )
{
ui.setupUi(this);
//resize( 500, 500 );
}

[JoeCFD]

===========main.cpp===========

#include <QApplication>

#include "TestWidget.h"

int main(int argc, char *argv[])
{
QApplication app(argc, argv);

TestWidget widget;
widget.show();

return app.exec();

}

[JoeCFD]

==================TestWidget.ui file

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>TestWidget</class>
 <widget class="QWidget" name="TestWidget">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>1037</width>
    <height>664</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>Form</string>
  </property>
  <layout class="QVBoxLayout" name="verticalLayout_2">
   <item>
    <widget class="QGroupBox" name="groupBox">
     <property name="title">
      <string>GroupBox</string>
     </property>
     <layout class="QHBoxLayout" name="horizontalLayout">
      <item>
       <layout class="QVBoxLayout" name="verticalLayout">
        <item>
         <widget class="QScrollArea" name="scrollArea">
          <property name="widgetResizable">
           <bool>true</bool>
          </property>
          <widget class="QWidget" name="scrollAreaWidgetContents">
           <property name="geometry">
            <rect>
             <x>0</x>
             <y>0</y>
             <width>1175</width>
             <height>584</height>
            </rect>
           </property>
           <layout class="QVBoxLayout" name="verticalLayout_3">
            <item>
             <widget class="QLabel" name="label">
              <property name="text">
               <string>Testing</string>
              </property>
             </widget>
            </item>
           </layout>
          </widget>
         </widget>
        </item>
       </layout>
      </item>
     </layout>
    </widget>
   </item>
  </layout>
 </widget>
 <resources/>
 <connections/>
</ui>

[JoeCFD]

You can see where I use TestWidget in .cpp, .h and .ui. They have to be the same.

[JoeCFD]

============================ui_TestWidget.h <=== this file is generated and you do not change it.

#ifndef UI_TESTWIDGET_H
#define UI_TESTWIDGET_H

#include <QtCore/QVariant>
#include <QtWidgets/QApplication>
#include <QtWidgets/QGroupBox>
#include <QtWidgets/QHBoxLayout>
#include <QtWidgets/QLabel>
#include <QtWidgets/QScrollArea>
#include <QtWidgets/QVBoxLayout>
#include <QtWidgets/QWidget>

QT_BEGIN_NAMESPACE

class Ui_TestWidget
{
public:
QVBoxLayout *verticalLayout_2;
QGroupBox *groupBox;
QHBoxLayout *horizontalLayout;
QVBoxLayout *verticalLayout;
QScrollArea *scrollArea;
QWidget *scrollAreaWidgetContents;
QVBoxLayout *verticalLayout_3;
QLabel *label;

void setupUi(QWidget *TestWidget)
{
    if (TestWidget->objectName().isEmpty())
        TestWidget->setObjectName(QString::fromUtf8("TestWidget"));
    TestWidget->resize(1037, 664);
    verticalLayout_2 = new QVBoxLayout(TestWidget);
    verticalLayout_2->setObjectName(QString::fromUtf8("verticalLayout_2"));
    groupBox = new QGroupBox(TestWidget);
    groupBox->setObjectName(QString::fromUtf8("groupBox"));
    horizontalLayout = new QHBoxLayout(groupBox);
    horizontalLayout->setObjectName(QString::fromUtf8("horizontalLayout"));
    verticalLayout = new QVBoxLayout();
    verticalLayout->setObjectName(QString::fromUtf8("verticalLayout"));
    scrollArea = new QScrollArea(groupBox);
    scrollArea->setObjectName(QString::fromUtf8("scrollArea"));
    scrollArea->setWidgetResizable(true);
    scrollAreaWidgetContents = new QWidget();
    scrollAreaWidgetContents->setObjectName(QString::fromUtf8("scrollAreaWidgetContents"));
    scrollAreaWidgetContents->setGeometry(QRect(0, 0, 1175, 584));
    verticalLayout_3 = new QVBoxLayout(scrollAreaWidgetContents);
    verticalLayout_3->setObjectName(QString::fromUtf8("verticalLayout_3"));
    label = new QLabel(scrollAreaWidgetContents);
    label->setObjectName(QString::fromUtf8("label"));

    verticalLayout_3->addWidget(label);

    scrollArea->setWidget(scrollAreaWidgetContents);

    verticalLayout->addWidget(scrollArea);


    horizontalLayout->addLayout(verticalLayout);


    verticalLayout_2->addWidget(groupBox);


    retranslateUi(TestWidget);

    QMetaObject::connectSlotsByName(TestWidget);
} // setupUi

void retranslateUi(QWidget *TestWidget)
{
    TestWidget->setWindowTitle(QCoreApplication::translate("TestWidget", "Form", nullptr));
    groupBox->setTitle(QCoreApplication::translate("TestWidget", "GroupBox", nullptr));
    label->setText(QCoreApplication::translate("TestWidget", "Testing", nullptr));
} // retranslateUi

};

namespace Ui {
class TestWidget: public Ui_TestWidget {};
} // namespace Ui

QT_END_NAMESPACE

#endif // UI_TESTWIDGET_

[lfreeman6490]

@JoeCFD I have it all the same except for one line in my pathloss.ui file. It has my widget class as a "QFrame" and it has to be changed in the design mode it says

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <author>free</author>
 <class>pathloss</class>
 <widget class="QFrame" name="pathloss">
  <property name="geometry">

[JoeCFD]

use upper case
<class>pathloss</class> ===> <class>Pathloss</class>
<widget class="QFrame" name="Pathloss"> <====not critical

[lfreeman6490]

@JoeCFD I was able to edit the xml and change my widgets section to be a QWidget and I'm dealing with some other errors from here. Thanks