kf.guiaddons: Could not init WaylandClipboard, falling back to QtClipboard.

Hello, Thanks for Developing KGuiaddons. I am trying to use ksystemclipbord to get the clipboard content from background but it fails,

kf.guiaddons: Could not init WaylandClipboard, falling back to QtClipboard.

I have installed all the required libraries with this script,

git clone https://github.com/KDE/extra-cmake-modules.git
cd extra-cmake-modules
git checkout v6.2.0
cmake -B ./build -DCMAKE_INSTALL_PREFIX="/opt/kderoot" -DCMAKE_BUILD_TYPE=Release -DQT_MAJOR_VERSION=6 -DCMAKE_PREFIX_PATH="${QT_CMAKE_DIR}"
cmake --build ./build --config Release --target install
cd build
make
sudo make install
cd ../..
rm -rf extra-cmake-modules

git clone https://github.com/KDE/plasma-wayland-protocols.git
cd plasma-wayland-protocols
cmake -B ./build -DCMAKE_INSTALL_PREFIX="/opt/kderoot" -DCMAKE_BUILD_TYPE=Release -DQT_MAJOR_VERSION=6 -DCMAKE_PREFIX_PATH="${QT_CMAKE_DIR}"
cmake --build ./build --config Release --target install
cd build
make
sudo make install
cd ../..
rm -rf plasma-wayland-protocols

git clone https://github.com/KDE/kguiaddons.git
cd kguiaddons
git checkout v6.2.0
cmake -B ./build -DCMAKE_INSTALL_PREFIX="/opt/kderoot" -DCMAKE_BUILD_TYPE=Release -DQT_MAJOR_VERSION=6 -DCMAKE_PREFIX_PATH="${QT_CMAKE_DIR}"
cmake --build ./build --config Release --target install
cd build
make
sudo make install
cd ../..
rm -rf kguiaddons

and In cmake I include like this,

if(WIN32 OR APPLE)
  find_package(Bonjour REQUIRED)
elseif(UNIX AND NOT APPLE)
  find_package(KF6GuiAddons REQUIRED)
  find_package(Avahi REQUIRED)
else()
  message(FATAL_ERROR "Platform not supported")
endif()

...

if(UNIX AND NOT APPLE)
  target_link_libraries(clipbird PRIVATE KF6::GuiAddons)
  target_include_directories(clipbird PUBLIC ${Avahi_INCLUDE_DIRS})
  target_link_libraries(clipbird PUBLIC ${Avahi_LIBRARIES})
  target_include_directories(clipbird PUBLIC ${DBUS_INCLUDE_DIRS})
  target_link_libraries(clipbird PUBLIC ${DBUS_LIBRARIES})
  target_include_directories(clipbird PUBLIC ${LIBNOTIFY_INCLUDE_DIRS})
  target_link_libraries(clipbird PUBLIC ${LIBNOTIFY_LIBRARIES})
  add_definitions(-D__linux__)
endif()

In C++,

#pragma once  // Header guard see https://en.wikipedia.org/wiki/Include_guard

// Copyright (c) 2023 Sri Lakshmi Kanthan P
//
// This software is released under the MIT License.
// https://opensource.org/licenses/MIT

// Qt header
#include <QApplication>
#include <QBuffer>
#include <QByteArray>
#include <QClipboard>
#include <QIODevice>
#include <QImage>
#include <QImageReader>
#include <QList>
#include <QMimeData>
#include <QObject>
#include <QPair>
#include <QString>
#include <QUrl>
#include <QVector>
#include <QtConcurrent>

// KSystem Clipboard header
#include <KSystemClipboard>

// project header
#include "types/except/except.hpp"

namespace srilakshmikanthanp::clipbirdesk::clipboard {

/**
 * @brief Class to manage clipboard such get,
 * set and notify the clipboard change
 */
class Clipboard : public QObject {
 signals:  // signals
  /**
   * @brief Signal to notify the clipboard change occurrence use
   * the parameter or get method to get the clipboard data
   * @param items clipboard data
   */
  void OnClipboardChange(QVector<QPair<QString, QByteArray>>);

 private:  // members

  // Use m_clipboard to only get, set and clear the clipboard
  // for other operations use QApplication::clipboard()
  KSystemClipboard *m_clipboard = KSystemClipboard::instance();

 private:  // just for Qt

  /// @brief Qt meta object
  Q_OBJECT

 private:  // disable copy and move

  Q_DISABLE_COPY_MOVE(Clipboard)

 private:  // private slots

  /// @brief Slot to notify the clipboard change
  void onClipboardChangeImpl();

 private:  // mime types

  const QString MIME_TYPE_TEXT  = "text/plain";
  const QString MIME_TYPE_PNG   = "image/png";
  const QString MIME_TYPE_HTML  = "text/html";

 private: // image type

  const char* IMAGE_TYPE_PNG = "PNG";

 public:  // constructor

  /**
   * @brief Construct a new Clipboard object and manage
   * the clipboard that is passed via the constructor
   *
   * @param clipboard Clipboard that is managed
   * @param parent parent object
   */
  explicit Clipboard(QObject* parent = nullptr);

  /**
   * @brief Get the clipboard data from the clipboard
   *
   * @return mime type and data
   */
  QVector<QPair<QString, QByteArray>> get() const;

  /**
   * @brief Clear the clipboard content
   */
  void clear();

  /**
   * @brief Set the clipboard data to the clipboard
   *
   * @param mime mime type of the data
   * @param data data to be set
   */
  void set(const QVector<QPair<QString, QByteArray>> data);
};
}  // namespace srilakshmikanthanp::clipbirdesk::clipboard

What i am doing wrong, I am happy to provide any aditional info required, Thanks.