I know very little about QT Creator, I tried to display an image in a label and I'm wrong somewhere.

I created a label with text in mainwindow.ui and it shows at runtime. But when I try to display an image on this same label, neither the text nor the image is displayed, there is just a white screen. Here is my mainwindow.cpp simple code:

#include "mainwindow.h"
#include "./ui_mainwindow.h"

#include <QLabel>
#include <QPixmap>


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

    QPixmap pm(":/assets/background.png"); // <- path to image file
    ui->label->setPixmap(pm);
    ui->label->setScaledContents(true);

    ui->label->show();
}


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

There is what I did :

• I added in CMakeLists.txt :

file(COPY assets DESTINATION ${CMAKE_CURRENT_BINARY_DIR})

• And I also noticed what appears to be an error in "6. General Messages":

Running C:\Qt\Tools\CMake_64\bin\cmake.exe -S F:/Prog/C/MyProg -B F:/Prog/C/build-MyProg-Desktop_Qt_6_5_1_MinGW_64_bit-Debug in F:\Prog\C\build-MyProg-Desktop_Qt_6_5_1_MinGW_64_bit-Debug.
-- Could NOT find WrapVulkanHeaders (missing: Vulkan_INCLUDE_DIR) 
CMake Error at CMakeLists.txt:82 (file):
  file COPY cannot find "F:/Prog/C/MyProg/images": No error.


-- Configuring incomplete, errors occurred!
See also "F:/Prog/C/build-MyProg-Desktop_Qt_6_5_1_MinGW_64_bit-Debug/CMakeFiles/CMakeOutput.log".
CMake process exited with exit code 1.

Elapsed time: 00:01.

Running C:\Qt\Tools\CMake_64\bin\cmake.exe -S F:/Prog/C/MyProg -B F:/Prog/C/build-MyProg-Desktop_Qt_6_5_1_MinGW_64_bit-Debug in F:\Prog\C\build-MyProg-Desktop_Qt_6_5_1_MinGW_64_bit-Debug.
-- Could NOT find WrapVulkanHeaders (missing: Vulkan_INCLUDE_DIR) 
-- Configuring done
-- Generating done
-- Build files have been written to: F:/Prog/C/build-MyProg-Desktop_Qt_6_5_1_MinGW_64_bit-Debug
Elapsed time: 00:04.

Running C:\Qt\Tools\CMake_64\bin\cmake.exe -S F:/Prog/C/MyProg -B F:/Prog/C/build-MyProg-Desktop_Qt_6_5_1_MinGW_64_bit-Debug in F:\Prog\C\build-MyProg-Desktop_Qt_6_5_1_MinGW_64_bit-Debug.
-- Could NOT find WrapVulkanHeaders (missing: Vulkan_INCLUDE_DIR) 
-- Configuring done
CMake Error at CMakeLists.txt:62 (target_link_libraries):
  Target "MyProg" links to:

    Qt6::Multimedia

  but the target was not found.  Possible reasons include:

    * There is a typo in the target name.
    * A find_package call is missing for an IMPORTED target.
    * An ALIAS target is missing.



-- Generating done
CMake Generate step failed.  Build files cannot be regenerated correctly.
CMake process exited with exit code 1.

Elapsed time: 00:01.

Running C:\Qt\Tools\CMake_64\bin\cmake.exe -S F:/Prog/C/MyProg -B F:/Prog/C/build-MyProg-Desktop_Qt_6_5_1_MinGW_64_bit-Debug in F:\Prog\C\build-MyProg-Desktop_Qt_6_5_1_MinGW_64_bit-Debug.
-- Could NOT find WrapVulkanHeaders (missing: Vulkan_INCLUDE_DIR) 
-- Configuring done
-- Generating done
CMake Error:
  Running

   'C:/msys64/mingw32/bin/ninja.exe' '-C' 'F:/Prog/C/build-MyProg-Desktop_Qt_6_5_1_MinGW_64_bit-Debug' '-t' 'recompact'

  failed with:

   ninja: error: failed recompaction: Permission denied



CMake Error:
  Running

   'C:/msys64/mingw32/bin/ninja.exe' '-C' 'F:/Prog/C/build-MyProg-Desktop_Qt_6_5_1_MinGW_64_bit-Debug' '-t' 'restat' 'build.ninja'

  failed with:

   ninja: error: failed recompaction: Permission denied



CMake Generate step failed.  Build files cannot be regenerated correctly.
CMake process exited with exit code 1.

Elapsed time: 00:01.

I don't know if it's important,

If someone has an idea why I can't place this image, I tested another image and it didn't work
Thank you