Failed to find required Qt component "WebEngineWidgets". Expected Config file at "D:/QT/6.6.0/mingw_64/lib/cmake/Qt6WebEngineWidgets/Qt6WebEngineWidgetsConfig.cmake" does NOT exist

[Futuray Programming]

Hello !
I'm trying to create a basic QtWebEngine app. But my CMake doesn't work.
Here is the CMake:

cmake_minimum_required(VERSION 3.5)

project(webengine VERSION 0.1 LANGUAGES CXX)

set(CMAKE_INCLUDE_CURRENT_DIR ON)

set(CMAKE_AUTOUIC ON)
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)

set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

find_package(QT NAMES Qt6 Qt5 REQUIRED COMPONENTS Widgets)
find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Widgets)
find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Network)
find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS WebEngineWidgets)

set(PROJECT_SOURCES
    main.cpp
    mainwindow.cpp
    mainwindow.h
)

if(${QT_VERSION_MAJOR} GREATER_EQUAL 6)
    qt_add_executable(webengine
        MANUAL_FINALIZATION
        ${PROJECT_SOURCES}
    )
# Define target properties for Android with Qt 6 as:
#    set_property(TARGET main APPEND PROPERTY QT_ANDROID_PACKAGE_SOURCE_DIR
#                 ${CMAKE_CURRENT_SOURCE_DIR}/android)
# For more information, see https://doc.qt.io/qt-6/qt-add-executable.html#target-creation
else()
    if(ANDROID)
        add_library(webengine SHARED
            ${PROJECT_SOURCES}
        )
# Define properties for Android with Qt 5 after find_package() calls as:
#    set(ANDROID_PACKAGE_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/android")
    else()
        add_executable(webengine
            ${PROJECT_SOURCES}
        )
    endif()
endif()

target_link_libraries(webengine PRIVATE Qt${QT_VERSION_MAJOR}::Widgets)
target_link_libraries(webengine PRIVATE Qt${QT_VERSION_MAJOR}::Widgets Qt${QT_VERSION_MAJOR}::WebEngineWidgets)
target_link_libraries(webengine PRIVATE Qt${QT_VERSION_MAJOR}::Widgets Qt${QT_VERSION_MAJOR}::Network)

set_target_properties(webengine PROPERTIES
    MACOSX_BUNDLE_GUI_IDENTIFIER my.example.com
    MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
    MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
    MACOSX_BUNDLE TRUE
    WIN32_EXECUTABLE TRUE
)

install(TARGETS webengine
    BUNDLE DESTINATION .
    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})

if(QT_VERSION_MAJOR EQUAL 6)
    qt_finalize_executable(webengine)
endif()

And here is the complete error:

-- Could NOT find WrapVulkanHeaders (missing: Vulkan_INCLUDE_DIR) 
-- Could NOT find Qt6WebEngineWidgets (missing: Qt6WebEngineWidgets_DIR)
CMake Error at CMakeLists.txt:17 (find_package):
  Found package configuration file:

    D:/QT/6.6.0/mingw_64/lib/cmake/Qt6/Qt6Config.cmake

  but it set Qt6_FOUND to FALSE so package "Qt6" is considered to be NOT
  FOUND.  Reason given by package:

  Failed to find required Qt component "WebEngineWidgets".

  Expected Config file at
  "D:/QT/6.6.0/mingw_64/lib/cmake/Qt6WebEngineWidgets/Qt6WebEngineWidgetsConfig.cmake"
  does NOT exist

I already search on other topics, but I didn't find anything to fix my error.

Thank you in advance,
Futuray

[Christian Ehrlicher]

WebEngine does not support MinGW. So either switch to MSVC or don't use it.

[Futuray Programming]

Ok, thank !
But, does it exit an other way to run a HTML/js code using Qt ?

[Christian Ehrlicher]

@Futuray-Programming That's what WebEngine is made for.