how too add an exciting ".ui" file to a "cpp widget application project"?

[aria_aa]

Hello,
I make an Qt Widgets Application in Qt Creator with window_no_000 class name and wanna add a exciting ".ui" file with window_no_001 class name that I made it before in another python project.
I add UI file to project and make ".h" and ".cpp" file for that but get some error on ".cpp" file and don't know where is problem.
I put all files here please help me.

project tree menu:

project files:

TSC_app_cpp.pro:

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

CONFIG += c++11

# You can make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

SOURCES += \
    main.cpp \
    window_no_000.cpp \
    window_no_001.cpp

HEADERS += \
    window_no_000.h \
    window_no_001.h

FORMS += \
    window_no_000.ui \
    window_no_001.ui

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

DISTFILES += \
    icons/activity.svg \
    icons/airplay.svg \
    icons/alert-circle.svg \
    icons/alert-octagon.svg \
    icons/alert-triangle.svg \
    icons/align-center.svg \
    icons/align-justify.svg \
    icons/align-left.svg \
    icons/align-right.svg \
    icons/anchor.svg \
    icons/aperture.svg \
    icons/archive.svg \
    icons/arrow-down-circle.svg \
    icons/arrow-down-left.svg \
    icons/arrow-down-right.svg \
    icons/arrow-down.svg \
    icons/arrow-left-circle.svg \
    icons/arrow-left.svg \
    icons/arrow-right-circle.svg \
    icons/arrow-right.svg \
    icons/arrow-up-circle.svg \
    icons/arrow-up-left.svg \
    icons/arrow-up-right.svg \
    icons/arrow-up.svg \
    icons/at-sign.svg \
    icons/award.svg \
    icons/bar-chart-2.svg \
    icons/bar-chart.svg \
    icons/battery-charging.svg \
    icons/battery.svg \
    icons/bell-off.svg \
    icons/bell.svg \
    icons/bluetooth.svg \
    icons/bold.svg \
    icons/book-open.svg \
    icons/book.svg \
    icons/bookmark.svg \
    icons/box.svg \
    icons/briefcase.svg \
    icons/calendar.svg \
    icons/camera-off.svg \
    icons/camera.svg \
    icons/cast.svg \
    icons/check-circle.svg \
    icons/check-square.svg \
    icons/check.svg \
    icons/chevron-down.svg \
    icons/chevron-left.svg \
    icons/chevron-right.svg \
    icons/chevron-up.svg \
    icons/chevrons-down.svg \
    icons/chevrons-left.svg \
    icons/chevrons-right.svg \
    icons/chevrons-up.svg \
    icons/chrome.svg \
    icons/circle.svg \
    icons/clipboard.svg \
    icons/clock.svg \
    icons/cloud-drizzle.svg \
    icons/cloud-lightning.svg \
    icons/cloud-off.svg \
    icons/cloud-rain.svg \
    icons/cloud-snow.svg \
    icons/cloud.svg \
    icons/code.svg \
    icons/codepen.svg \
    icons/codesandbox.svg \
    icons/coffee.svg \
    icons/columns.svg \
    icons/command.svg \
    icons/compass.svg \
    icons/copy.svg \
    icons/corner-down-left.svg \
    icons/corner-down-right.svg \
    icons/corner-left-down.svg \
    icons/corner-left-up.svg \
    icons/corner-right-down.svg \
    icons/corner-right-up.svg \
    icons/corner-up-left.svg \
    icons/corner-up-right.svg \
    icons/cpu.svg \
    icons/credit-card.svg \
    icons/crop.svg \
    icons/crosshair.svg \
    icons/database.svg \
    icons/delete.svg \
    icons/disc.svg \
    icons/divide-circle.svg \
    icons/divide-square.svg \
    icons/divide.svg \
    icons/dollar-sign.svg \
    icons/download-cloud.svg \
    icons/download.svg \
    icons/dribbble.svg \
    icons/droplet.svg \
    icons/edit-2.svg \
    icons/edit-3.svg \
    icons/edit.svg \
    icons/external-link.svg \
    icons/eye-off.svg \
    icons/eye.svg \
    icons/facebook.svg \
    icons/fast-forward.svg \
    icons/feather.svg \
    icons/figma.svg \
    icons/file-minus.svg \
    icons/file-plus.svg \
    icons/file-text.svg \
    icons/file.svg \
    icons/film.svg \
    icons/filter.svg \
    icons/flag.svg \
    icons/folder-minus.svg \
    icons/folder-plus.svg \
    icons/folder.svg \
    icons/framer.svg \
    icons/frown.svg \
    icons/gift.svg \
    icons/git-branch.svg \
    icons/git-commit.svg \
    icons/git-merge.svg \
    icons/git-pull-request.svg \
    icons/github.svg \
    icons/gitlab.svg \
    icons/globe.svg \
    icons/grid.svg \
    icons/hard-drive.svg \
    icons/hash.svg \
    icons/headphones.svg \
    icons/heart.svg \
    icons/help-circle.svg \
    icons/hexagon.svg \
    icons/home.svg \
    icons/image.svg \
    icons/inbox.svg \
    icons/info.svg \
    icons/instagram.svg \
    icons/italic.svg \
    icons/key.svg \
    icons/layers.svg \
    icons/layout.svg \
    icons/life-buoy.svg \
    icons/link-2.svg \
    icons/link.svg \
    icons/linkedin.svg \
    icons/list.svg \
    icons/loader.svg \
    icons/lock.svg \
    icons/log-in.svg \
    icons/log-out.svg \
    icons/mail.svg \
    icons/map-pin.svg \
    icons/map.svg \
    icons/maximize-2.svg \
    icons/maximize.svg \
    icons/meh.svg \
    icons/menu.svg \
    icons/message-circle.svg \
    icons/message-square.svg \
    icons/mic-off.svg \
    icons/mic.svg \
    icons/minimize-2.svg \
    icons/minimize.svg \
    icons/minus-circle.svg \
    icons/minus-square.svg \
    icons/minus.svg \
    icons/monitor.svg \
    icons/moon.svg \
    icons/more-horizontal.svg \
    icons/more-vertical.svg \
    icons/mouse-pointer.svg \
    icons/move.svg \
    icons/music.svg \
    icons/navigation-2.svg \
    icons/navigation.svg \
    icons/octagon.svg \
    icons/package.svg \
    icons/paperclip.svg \
    icons/pause-circle.svg \
    icons/pause.svg \
    icons/pen-tool.svg \
    icons/percent.svg \
    icons/phone-call.svg \
    icons/phone-forwarded.svg \
    icons/phone-incoming.svg \
    icons/phone-missed.svg \
    icons/phone-off.svg \
    icons/phone-outgoing.svg \
    icons/phone.svg \
    icons/pie-chart.svg \
    icons/play-circle.svg \
    icons/play.svg \
    icons/plus-circle.svg \
    icons/plus-square.svg \
    icons/plus.svg \
    icons/pocket.svg \
    icons/power.svg \
    icons/printer.svg \
    icons/radio.svg \
    icons/refresh-ccw.svg \
    icons/refresh-cw.svg \
    icons/repeat.svg \
    icons/rewind.svg \
    icons/rotate-ccw.svg \
    icons/rotate-cw.svg \
    icons/rss.svg \
    icons/save.svg \
    icons/scissors.svg \
    icons/search.svg \
    icons/send.svg \
    icons/server.svg \
    icons/settings.svg \
    icons/share-2.svg \
    icons/share.svg \
    icons/shield-off.svg \
    icons/shield.svg \
    icons/shopping-bag.svg \
    icons/shopping-cart.svg \
    icons/shuffle.svg \
    icons/sidebar.svg \
    icons/skip-back.svg \
    icons/skip-forward.svg \
    icons/slack.svg \
    icons/slash.svg \
    icons/sliders.svg \
    icons/smartphone.svg \
    icons/smile.svg \
    icons/speaker.svg \
    icons/square.svg \
    icons/star.svg \
    icons/stop-circle.svg \
    icons/sun.svg \
    icons/sunrise.svg \
    icons/sunset.svg \
    icons/tablet.svg \
    icons/tag.svg \
    icons/target.svg \
    icons/terminal.svg \
    icons/thermometer.svg \
    icons/thumbs-down.svg \
    icons/thumbs-up.svg \
    icons/toggle-left.svg \
    icons/toggle-right.svg \
    icons/tool.svg \
    icons/trash-2.svg \
    icons/trash.svg \
    icons/trello.svg \
    icons/trending-down.svg \
    icons/trending-up.svg \
    icons/triangle.svg \
    icons/truck.svg \
    icons/tv.svg \
    icons/twitch.svg \
    icons/twitter.svg \
    icons/type.svg \
    icons/umbrella.svg \
    icons/underline.svg \
    icons/unlock.svg \
    icons/upload-cloud.svg \
    icons/upload.svg \
    icons/user-check.svg \
    icons/user-minus.svg \
    icons/user-plus.svg \
    icons/user-x.svg \
    icons/user.svg \
    icons/users.svg \
    icons/video-off.svg \
    icons/video.svg \
    icons/voicemail.svg \
    icons/volume-1.svg \
    icons/volume-2.svg \
    icons/volume-x.svg \
    icons/volume.svg \
    icons/watch.svg \
    icons/wifi-off.svg \
    icons/wifi.svg \
    icons/wind.svg \
    icons/x-circle.svg \
    icons/x-octagon.svg \
    icons/x-square.svg \
    icons/x.svg \
    icons/youtube.svg \
    icons/zap-off.svg \
    icons/zap.svg \
    icons/zoom-in.svg \
    icons/zoom-out.svg

RESOURCES += \
    icons.qrc

window_no_000.h:

#ifndef WINDOW_NO_000_H
#define WINDOW_NO_000_H
#include <QMainWindow>

QT_BEGIN_NAMESPACE
namespace Ui { class window_no_000; }
QT_END_NAMESPACE

class window_no_000 : public QMainWindow
{
    Q_OBJECT

public:
    window_no_000(QWidget *parent = nullptr);
    ~window_no_000();

private:
    Ui::window_no_000 *ui;
};
#endif // WINDOW_NO_000_H

window_no_001.h

#ifndef WINDOW_NO_001_H
#define WINDOW_NO_001_H
#include <QMainWindow>

QT_BEGIN_NAMESPACE
namespace Ui { class window_no_001; }
QT_END_NAMESPACE

class window_no_001 : public QMainWindow
{
    Q_OBJECT

public:
    window_no_001(QWidget *parent = nullptr);
    ~window_no_001();

private:
    Ui::window_no_001 *ui;
};
#endif // WINDOW_NO_001_H

main.cpp:

#include "window_no_000.h"
#include "window_no_001.h"
#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    window_no_001 w;
    w.show();
    return a.exec();
}

window_no_000.cpp:

#include "window_no_000.h"
#include "ui_window_no_000.h"

window_no_000::window_no_000(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::window_no_000)
{
    ui->setupUi(this);
}

window_no_000::~window_no_000()
{
    delete ui;
}

window_no_001.cpp:

#include "window_no_001.h"
#include "ui_window_no_001.h"

window_no_001::window_no_001(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::window_no_001)
{
    ui->setupUi(this);
}

window_no_001::~window_no_001()
{
    delete ui;
}

window_no_000.ui:

window_no_001.ui:

errors when I want to build project:

What should I do?

And another question:
what is #include "ui_window_no_000.h" and #include "ui_window_no_001.h" in cpp files?
there is no file such as ui_window_no_000.h or ui_window_no_001.h in project.

[sierdzio]

@aria_aa said in how too add an exciting ".ui" file to a "cpp widget application project"?:

What should I do?

• clean up the build directory
• run qmake
• rebuild project

Should work, code looks good.

And another question:
what is #include "ui_window_no_000.h" and #include "ui_window_no_001.h" in cpp files?
there is no file such as ui_window_no_000.h or ui_window_no_001.h in project.

These files are automatically generated from your .ui files by uic. It's part of the build process in Qt, same as with it running moc to generate meta-object functionality.