Error during build from source （AutoMOC）

cmcm

I followed the tutorial on the official website (https://doc.qt.io/qt-6/windows-building.html) to compile Qt 6.5.0.

My environment:

Windows 10
Visual Studio 2022 (MSVC 14.39.33519)
CMake 3.30
Ninja 1.12.0

However, I keep encountering the error: Automatic MOC for XXX ... Failed .... .

I've tried shortening the paths as much as possible and running the command prompt as an administrator, but it hasn't helped.

Has anyone successfully built it? I need your assistance.

Some of the log :

F:\build>F:\VS2022\IDE\VC\Auxiliary\Build\vcvarsall.bat amd64
**********************************************************************
** Visual Studio 2022 Developer Command Prompt v17.0
** Copyright (c) 2022 Microsoft Corporation
**********************************************************************
[vcvarsall.bat] Environment initialized for: 'x64'

F:\build>..\qt6.5.0\configure
+ cd qtbase
+ F:\qt6.5.0\qtbase\configure.bat -top-level
-- Windows 10 SDK version: 10.0.22621.0
'E:/CMake/bin/cmake.exe' '-G' 'Ninja' 'F:/qt6.5.0'
-- Using vcpkg from F:\VS2022\IDE\VC\vcpkg
-- CMAKE_TOOLCHAIN_FILE is: F:/VS2022/IDE/VC/vcpkg/scripts/buildsystems/vcpkg.cmake
-- The CXX compiler identification is MSVC 19.39.33523.0
-- The C compiler identification is MSVC 19.39.33523.0
-- The ASM compiler identification is MSVC
-- Found assembler: F:/VS2022/IDE/VC/Tools/MSVC/14.39.33519/bin/Hostx64/x64/cl.exe
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: F:/VS2022/IDE/VC/Tools/MSVC/14.39.33519/bin/Hostx64/x64/cl.exe - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: F:/VS2022/IDE/VC/Tools/MSVC/14.39.33519/bin/Hostx64/x64/cl.exe - skipped
-- Detecting C compile features
-- Detecting C compile features - done
......
-- Checking dependencies of submodule 'qtwebview'
-- Configuring submodule 'qtbase'
            -DVCPKG_TARGET_TRIPLET=x64-windows
            -DVCPKG_APPLOCAL_DEPS=ON
            -DZ_VCPKG_ROOT_DIR=F:/VS2022/IDE/VC/vcpkg
            -DCMAKE_C_FLAGS=/DWIN32 /D_WINDOWS
            -DCMAKE_C_FLAGS_DEBUG=/Zi /Ob0 /Od /RTC1
            -DCMAKE_C_FLAGS_RELEASE=/O2 /Ob2 /DNDEBUG
            -DCMAKE_C_FLAGS_RELWITHDEBINFO=/Zi /O2 /Ob1 /DNDEBUG
            -DCMAKE_CXX_FLAGS=/DWIN32 /D_WINDOWS /EHsc
            -DCMAKE_CXX_FLAGS_DEBUG=/Zi /Ob0 /Od /RTC1
            -DCMAKE_CXX_FLAGS_RELEASE=/O2 /Ob2 /DNDEBUG
            -DCMAKE_CXX_FLAGS_RELWITHDEBINFO=/Zi /O2 /Ob1 /DNDEBUG
            -DCMAKE_OBJCOPY=E:/TDMGCC/bin/objcopy.exe
            -DCMAKE_TOOLCHAIN_FILE=F:/VS2022/IDE/VC/vcpkg/scripts/buildsystems/vcpkg.cmake
            -DCMAKE_C_STANDARD=11
            -DCMAKE_C_STANDARD_REQUIRED=ON
            -DCMAKE_CXX_STANDARD=17
            -DCMAKE_CXX_STANDARD_REQUIRED=ON
            -DCMAKE_MODULE_PATH:STRING=F:/qt6.5.0/qtbase/cmake/platforms

CMake Warning (dev) at F:/build/qtbase/lib/cmake/Qt6Qml/Qt6QmlBuildInternals.cmake:404 (message):
  INSTALL_SOURCE_QMLTYPES option is deprecated and should not be used.
  Please port your module to use declarative type registration.
Call Stack (most recent call first):
  qtwebsockets/src/imports/qmlwebsockets/CMakeLists.txt:4 (qt_internal_add_qml_module)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Configuring submodule 'qthttpserver'
-- Configuring submodule 'qttools'
-- Could NOT find Clang (missing: Clang_DIR)
-- Could NOT find Clang (missing: Clang_DIR)
-- Configuring submodule 'qtserialport'
-- Configuring submodule 'qtpositioning'
-- Configuring submodule 'qtwebchannel'
CMake Warning (dev) at F:/build/qtbase/lib/cmake/Qt6Qml/Qt6QmlBuildInternals.cmake:404 (message):
  INSTALL_SOURCE_QMLTYPES option is deprecated and should not be used.
  Please port your module to use declarative type registration.
Call Stack (most recent call first):
  qtwebchannel/src/imports/webchannel/CMakeLists.txt:10 (qt_internal_add_qml_module)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Configuring submodule 'qtwebengine'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ModuleNotFoundError: No module named 'html5lib'
[QtWebEngine] -- Windows 10 SDK version: 10.0.22621.0
[QtWebEngine] -- Support check for QtWebEngine failed: node.js version 12 or later is required.
[QtWebEngine] -- Support check for QtPdf failed: node.js version 12 or later is required.
-- Configuring submodule 'qtdoc'
-- Configuring submodule 'qtgrpc'
-- Configuring submodule 'qtlocation'
-- Configuring submodule 'qtlottie'
-- Configuring submodule 'qtmqtt'
-- Configuring submodule 'qtnetworkauth'
-- Configuring submodule 'qtopcua'
-- Configuring submodule 'qtquick3dphysics'
-- Configuring submodule 'qtquickeffectmaker'
Nodes path: ./qml/QtQuickEffectMaker/defaultnodes
-- Configuring submodule 'qtremoteobjects'
-- Configuring submodule 'qtscxml'
-- Configuring submodule 'qtsensors'
-- Configuring submodule 'qtserialbus'
-- Configuring submodule 'qtspeech'
-- Configuring submodule 'qttranslations'
-- Configuring submodule 'qtvirtualkeyboard'
-- Configuring submodule 'qtwayland'
Skipping the build as the condition "LINUX OR MACOS OR QNX" is not met.
-- Configuring submodule 'qtwebview'
-- Could NOT find Qt6WebEngineCore (missing: Qt6WebEngineCore_DIR)
CMake Warning at F:/build/qtbase/lib/cmake/Qt6/Qt6Config.cmake:214 (message):
  Failed to find optional Qt component "WebEngineCore".

  Expected Config file at
  "F:/build/qtbase/lib/cmake/Qt6WebEngineCore/Qt6WebEngineCoreConfig.cmake"
  does NOT exist

Call Stack (most recent call first):
  F:/VS2022/IDE/VC/vcpkg/scripts/buildsystems/vcpkg.cmake:859 (_find_package)
  qtwebview/CMakeLists.txt:15 (find_package)


-- Could NOT find Qt6WebEngineQuick (missing: Qt6WebEngineQuick_DIR)
CMake Warning at F:/build/qtbase/lib/cmake/Qt6/Qt6Config.cmake:214 (message):
  Failed to find optional Qt component "WebEngineQuick".

  Expected Config file at
  "F:/build/qtbase/lib/cmake/Qt6WebEngineQuick/Qt6WebEngineQuickConfig.cmake"
  does NOT exist

Call Stack (most recent call first):
  F:/VS2022/IDE/VC/vcpkg/scripts/buildsystems/vcpkg.cmake:859 (_find_package)
  qtwebview/CMakeLists.txt:15 (find_package)



-- Configuration summary shown below. It has also been written to F:/build/config.summary
-- Configure with --log-level=STATUS or higher to increase CMake's message verbosity. The log level does not persist across reconfigurations.

-- Configure summary:

Building for: win32-msvc (x86_64, CPU features: sse sse2)
Compiler: msvc 19.39.33523.0
Build options:
  Mode ................................... debug
  Fully optimize release builds (-O3) .... no
  Building shared libraries .............. yes
  Using C standard ....................... C11
  Using C++ standard ..................... C++17
  Relocatable ............................ yes
  Using precompiled headers .............. yes
  Using Link Time Optimization (LTCG) .... no
  Using Intel CET ........................ no
  Target compiler supports:
    x86 Intrinsics ....................... Basic VAES AVX512VBMI2
  Sanitizers:
    Addresses ............................ no
    Threads .............................. no
    Memory ............................... no
    Fuzzer (instrumentation only) ........ no
    Undefined ............................ no
  Build parts ............................ libs tools
  App store compliance ................... no
Qt modules and options:
  Qt Concurrent .......................... yes
  Qt D-Bus ............................... yes
  Qt D-Bus directly linked to libdbus .... no
  Qt Gui ................................. yes
  Qt Network ............................. yes
  Qt PrintSupport ........................ yes
  Qt Sql ................................. yes
  Qt Testlib ............................. yes
  Qt Widgets ............................. yes
  Qt Xml ................................. yes
Support enabled for:
  Using pkg-config ....................... no
  udev ................................... no
  OpenSSL ................................ no
    Qt directly linked to OpenSSL ........ no
  OpenSSL 1.1 ............................ no
  OpenSSL 3.0 ............................ no
  Using system zlib ...................... no
  Zstandard support ...................... no
  Thread support ......................... yes
Common build options:
  Linker can resolve circular dependencies  yes
Qt Core:
  backtrace .............................. no
  DoubleConversion ....................... yes
    Using system DoubleConversion ........ no
  GLib ................................... no
  ICU .................................... no
  Using system libb2 ..................... no
  Built-in copy of the MIME database ..... yes
  cpp/winrt base ......................... yes
  Tracing backend ........................ <none>
  Logging backends:
    journald ............................. no
    syslog ............................... no
    slog2 ................................ no
  PCRE2 .................................. yes
    Using system PCRE2 ................... no
  Application permissions ................ no
Qt Sql:
  SQL item models ........................ yes
Qt Network:
  getifaddrs() ........................... no
  IPv6 ifname ............................ no
  libproxy ............................... no
  Schannel ............................... yes
  DTLS ................................... no
  OCSP-stapling .......................... no
  SCTP ................................... no
  Use system proxies ..................... yes
  GSSAPI ................................. no
  Brotli Decompression Support ........... no
  qIsEffectiveTLD() ...................... yes
    Built-in publicsuffix database ....... yes
    System publicsuffix database ......... no
Core tools:
  Android deployment tool ................ yes
  macOS deployment tool .................. no
  Windows deployment tool ................ yes
  qmake .................................. yes
Qt Gui:
  Accessibility .......................... yes
  FreeType ............................... yes
    Using system FreeType ................ no
  HarfBuzz ............................... yes
    Using system HarfBuzz ................ no
  Fontconfig ............................. no
  Image formats:
    GIF .................................. yes
    ICO .................................. yes
    JPEG ................................. yes
      Using system libjpeg ............... no
    PNG .................................. yes
      Using system libpng ................ no
  Text formats:
    HtmlParser ........................... yes
    CssParser ............................ yes
    OdfWriter ............................ yes
    MarkdownReader ....................... yes
      Using system libmd4c ............... no
    MarkdownWriter ....................... yes
  EGL .................................... no
  OpenVG ................................. no
  OpenGL:
    Desktop OpenGL ....................... no
    Dynamic OpenGL ....................... yes
    OpenGL ES 2.0 ........................ no
    OpenGL ES 3.0 ........................ no
    OpenGL ES 3.1 ........................ no
    OpenGL ES 3.2 ........................ no
  Vulkan ................................. no
  Session Management ..................... yes
Features used by QPA backends:
  evdev .................................. no
  libinput ............................... no
  HiRes wheel support in libinput ........ no
  INTEGRITY HID .......................... no
  mtdev .................................. no
  tslib .................................. no
  xkbcommon .............................. no
  X11 specific:
    XLib ................................. no
    XCB Xlib ............................. no
    EGL on X11 ........................... no
    xkbcommon-x11 ........................ no
    xcb-sm ............................... no
QPA backends:
  DirectFB ............................... no
  EGLFS .................................. no
  EGLFS details:
    EGLFS OpenWFD ........................ no
    EGLFS i.Mx6 .......................... no
    EGLFS i.Mx6 Wayland .................. no
    EGLFS RCAR ........................... no
    EGLFS EGLDevice ...................... no
    EGLFS GBM ............................ no
    EGLFS VSP2 ........................... no
    EGLFS Mali ........................... no
    EGLFS Raspberry Pi ................... no
    EGLFS X11 ............................ no
  LinuxFB ................................ no
  VNC .................................... no
  VK_KHR_display ......................... no
  QNX:
    lgmon ................................ no
    IMF .................................. no
  XCB:
    Using system-provided xcb-xinput ..... no
    GL integrations:
      GLX Plugin ......................... no
        XCB GLX .......................... no
      EGL-X11 Plugin ..................... no
  Windows:
    Direct 2D ............................ yes
    Direct 2D 1.1 ........................ yes
    DirectWrite .......................... yes
    DirectWrite 3 ........................ yes
Qt Widgets:
  GTK+ ................................... no
  Styles ................................. Fusion Windows WindowsVista
Qt Testlib:
  Tester for item models ................. yes
  Batch tests ............................ no
Qt PrintSupport:
  CUPS ................................... no
Qt Sql Drivers:
  DB2 (IBM) .............................. no
  InterBase .............................. no
  MySql .................................. no
  OCI (Oracle) ........................... no
  ODBC ................................... yes
  PostgreSQL ............................. no
  SQLite ................................. yes
    Using system provided SQLite ......... no
Further Image Formats:
  JasPer ................................. no
  MNG .................................... no
  TIFF ................................... yes
    Using system libtiff ................. no
  WEBP ................................... yes
    Using system libwebp ................. no
Qt QML:
  QML network support .................... yes
  QML debugging and profiling support .... yes
  QML just-in-time compiler .............. yes
  QML XML http request ................... yes
  QML Locale ............................. yes
Qt QML Models:
  QML list model ......................... yes
  QML delegate model ..................... yes
Qt Quick:
  AnimatedImage item ..................... yes
  Canvas item ............................ yes
  Support for Qt Quick Designer .......... yes
  Flipable item .......................... yes
  GridView item .......................... yes
  ListView item .......................... yes
  TableView item ......................... yes
  TreeView item .......................... yes
  Path support ........................... yes
  PathView item .......................... yes
  Positioner items ....................... yes
  Repeater item .......................... yes
  ShaderEffect item ...................... yes
  Sprite item ............................ yes
Qt Quick Templates 2:
  Hover support .......................... yes
  Multi-touch support .................... yes
  Calendar support ....................... yes
Qt Quick Controls 2:
  Styles ................................. Basic Fusion Imagine iOS Material Universal macOS Windows
QtQuick3D:
  Assimp ................................. yes
  System Assimp .......................... no
Qt Multimedia:
  Spatial Audio .......................... yes
  Spatial Audio (Quick3D) ................ yes
  Low level Audio Backend:
    ALSA (experimental) .................. no
    PulseAudio ........................... no
    MMRenderer ........................... no
    CoreAudio ............................ no
    Windows Media SDK .................... yes
    Open SLES (Android) .................. no
    Web Assembly ......................... no
  Plugin:
    GStreamer 1.0 ........................ no
    FFmpeg ............................... no
    MMRenderer ........................... no
    AVFoundation ......................... no
    Windows Media Foundation ............. yes
  Hardware acceleration and features:
    Video for Linux ...................... no
    VAAPI support ........................ no
    Linux DMA buffer support ............. no
    VideoToolbox ......................... no
Qt 3D:
  Assimp ................................. yes
  System Assimp .......................... no
  Use SSE2 instructions .................. yes
  Use AVX2 instructions .................. no
  Aspects:
    Render aspect ........................ yes
    Input aspect ......................... yes
    Logic aspect ......................... yes
    Animation aspect ..................... yes
    Extras aspect ........................ yes
Qt 3D APIs:
  Vulkan ................................. no
Qt 3D Renderers:
  OpenGL Renderer ........................ yes
  RHI Renderer ........................... yes
Qt3D Geometry Loaders:
  Autodesk FBX ........................... no
Qt 5 Compatibility Libraries:
  iconv .................................. no
Qt Charts Types:
  Area Chart ............................. yes
  Line Chart ............................. yes
  Spline Chart ........................... yes
  Scatter Chart .......................... yes
  Bar Chart .............................. yes
  Pie Chart .............................. yes
  Boxplot Chart .......................... yes
  Candlestick Chart ...................... yes
Qt Axis Types:
  DateTime Axis .......................... yes
Qt Bluetooth:
  BlueZ .................................. no
  BlueZ Low Energy ....................... no
  Linux Crypto API ....................... no
  WinRT Bluetooth API .................... yes
Qt Tools:
  Qt Assistant ........................... yes
  QDoc ................................... no
  Clang-based lupdate parser ............. no
  Qt Designer ............................ yes
  Qt Distance Field Generator ............ yes
  Qt Linguist ............................ yes
  pixeltool .............................. yes
  qdbus .................................. yes
  Qt Attributions Scanner ................ yes
  qtdiag ................................. yes
  qtplugininfo ........................... yes
Serial Port:
  ntddmodm ............................... no
WebEngine Repository Build Options:
  Build Ninja ............................ no
  Build Gn ............................... yes
  Jumbo Build ............................ yes
  Developer build ........................ no
  Build QtWebEngine Modules:
    Build QtWebEngineCore ................ no
    Build QtWebEngineWidgets ............. no
    Build QtWebEngineQuick ............... no
  Build QtPdf Modules:
    Build QtPdfWidgets ................... no
    Build QtPdfQuick ..................... no
Qt Protobuf tools:
  Qt Protobuf generator .................. no
Qt GRPC:
  gRPC support ........................... yes
  Native gRPC support .................... no
Qt GRPC tools:
  Qt GRPC generator ...................... no
Qt Opcua:
  Open62541 .............................. yes
  Unified Automation C++ SDK ............. no
  Support for namespace 0 NodeId names ... yes
  Namespace 0 NodeIds generator .......... no
  Open62541 security support ............. no
  Support for global discovery server .... no
Qt Remote Objects:
  High Availability Manager (ham) ........ no
Qt Scxml:
  ECMAScript data model for QtScxml ...... yes
Qt Sensors:
  WinRT sensors backend .................. yes
Qt SerialBus:
  Socket CAN ............................. no
  Socket CAN FD .......................... no
  SerialPort Support ..................... yes
Qt TextToSpeech:
  Flite .................................. no
  Flite with ALSA ........................ no
  Speech Dispatcher ...................... no
Qt Virtualkeyboard:
  Desktop integration .................... yes
  Built-in layouts ....................... yes
  Key navigation ......................... no
  Retro style as default ................. no
  Sensitive Debug ........................ no
  Cerence ................................ no
    Static Linking ....................... no
    Handwriting .......................... no
      Alphabetic ......................... no
      CJK ................................ no
    XT9 .................................. no
      XT9 Debug .......................... no
      XT9 9-key layouts .................. no
    Bundle resources ..................... no
      Handwriting ........................ no
      XT9 ................................ no
  Hunspell ............................... no
    Using Hunspell copy from 3rdparty/ ... no
  OpenWnn ................................ yes
  MyScript ............................... no
  Language support enabled for:
    Arabic ............................... yes
    Bulgarian ............................ yes
    Czech ................................ yes
    Danish ............................... yes
    German ............................... yes
    Greek ................................ yes
    English GB ........................... yes
    English US ........................... yes
    Spanish .............................. yes
    Spanish Mexico ....................... yes
    Estonian ............................. yes
    Farsi ................................ yes
    Finnish .............................. yes
    French Canada ........................ yes
    French France ........................ yes
    Hebrew ............................... yes
    Hindi ................................ yes
    Croatian ............................. yes
    Hungarian ............................ yes
    Indonesian ........................... yes
    Italian .............................. yes
    Japanese ............................. yes
    Korean ............................... yes
    Malay ................................ yes
    Norwegian ............................ yes
    Dutch ................................ yes
    Polish ............................... yes
    Portuguese Brazil .................... yes
    Portuguese Portugal .................. yes
    Romanian ............................. yes
    Russian .............................. yes
    Slovak ............................... yes
    Slovenian ............................ yes
    Albanian ............................. yes
    Serbian .............................. yes

Note: Hunspell in Qt Virtual Keyboard is not enabled. Spelling correction will not be available.

WARNING: QDoc will not be compiled, probably because libclang could not be located. This means that you cannot build the Qt documentation.
Either set CMAKE_PREFIX_PATH or LLVM_INSTALL_DIR to the location of your llvm installation.
On Linux systems, you may be able to install libclang by installing the libclang-dev or libclang-devel package, depending on your distribution.
On macOS, you can use Homebrew's llvm package.
You will also need to set the FEATURE_clang CMake variable to ON to re-evaluate this check.
WARNING: Clang-based lupdate parser will not be available. LLVM and Clang C++ libraries have not been found.
You will need to set the FEATURE_clangcpp CMake variable to ON to re-evaluate this check.
WARNING: QtWebEngine won't be built. node.js version 12 or later is required.
WARNING: QtPdf won't be built. node.js version 12 or later is required.
--

Qt is now configured for building. Just run 'cmake --build . --parallel'

Once everything is built, you must run 'cmake --install .'
Qt will be installed into 'C:/Qt/Qt-6.5.0'

To configure and build other Qt modules, you can use the following convenience script:
        C:/Qt/Qt-6.5.0/bin/qt-configure-module.bat

If reconfiguration fails for some reason, try removing 'CMakeCache.txt' from the build directory
Alternatively, you can add the --fresh flag to your CMake flags.

-- Configuring done (101.9s)
-- Generating done (9.3s)
-- Build files have been written to: F:/build

F:\build>cmake --build . -- parallel
ninja: error: unknown target 'parallel'

F:\build>cmake --build . --parallel
[1135/10883] Automatic MOC for target Gui
FAILED: qtbase/src/gui/Gui_autogen/timestamp qtbase/src/gui/Gui_autogen/mocs_compilation.cpp F:/build/qtbase/src/gui/Gui_autogen/timestamp F:/build/qtbase/src/gui/Gui_autogen/mocs_compilation.cpp
C:\Windows\system32\cmd.exe /C "cd /D F:\build\qtbase\src\gui && E:\CMake\bin\cmake.exe -E cmake_autogen F:/build/qtbase/src/gui/CMakeFiles/Gui_autogen.dir/AutogenInfo.json Debug && E:\CMake\bin\cmake.exe -E touch F:/build/qtbase/src/gui/Gui_autogen/timestamp && E:\CMake\bin\cmake.exe -E cmake_transform_depfile Ninja gccdepfile F:/qt6.5.0 F:/qt6.5.0/qtbase/src/gui F:/build F:/build/qtbase/src/gui F:/build/qtbase/src/gui/Gui_autogen/deps F:/build/CMakeFiles/d/16dc19875420b6a2a4d780868aa15e5a098da677c46bf8469c68f2a7ddade346.d"

AutoMoc subprocess error
------------------------
The moc process failed to compile
  "SRC:/qtbase/src/gui/itemmodels/qstandarditemmodel.h"
into
  "BIN:/qtbase/src/gui/Gui_autogen/include/moc_qstandarditemmodel.cpp"
included by
  "SRC:/qtbase/src/gui/itemmodels/qstandarditemmodel.cpp"
Process failed with return value 3221225477

Command
-------
F:/build/qtbase/bin/moc.exe -DGui_EXPORTS -DMD4C_USE_UTF8 -DQT_ASCII_CAST_WARNINGS -DQT_BUILDING_QT -DQT_BUILD_GUI_LIB -DQT_CORE_LIB -DQT_DEPRECATED_WARNINGS -DQT_DISABLE_DEPRECATED_UP_TO=0x040800 -DQT_EXPLICIT_QFILE_CONSTRUCTION_FROM_PATH -DQT_LEAN_HEADERS=1 -DQT_MOC_COMPAT -DQT_NO_AS_CONST=1 -DQT_NO_CAST_TO_ASCII -DQT_NO_EXCEPTIONS -DQT_NO_FOREACH -DQT_NO_JAVA_STYLE_ITERATORS -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_NO_USING_NAMESPACE "-DQT_QPA_DEFAULT_PLATFORM_NAME=\"windows\"" -DQT_USE_QSTRINGBUILDER -DQT_WARN_DEPRECATED_UP_TO=0x070000 -DUNICODE -DWIN32 -DWIN64 -D_CRT_SECURE_NO_WARNINGS -D_ENABLE_EXTENDED_ALIGNED_STORAGE -D_UNICODE -D_USE_MATH_DEFINES -D_WIN64 -D_WINDLL -IF:/build/qtbase/include -IF:/build/qtbase/include/QtGui -IF:/qt6.5.0/qtbase/src/gui -IF:/build/qtbase/src/gui -IF:/qt6.5.0/qtbase/src/3rdparty/VulkanMemoryAllocator -IF:/build/qtbase/include/QtGui/6.5.0 -IF:/build/qtbase/include/QtGui/6.5.0/QtGui -IF:/qt6.5.0/qtbase/src/3rdparty/md4c -IF:/qt6.5.0/qtbase/src/3rdparty/zlib/src -IF:/build/qtbase/include/QtCore -IF:/qt6.5.0/qtbase/mkspecs/win32-msvc -IF:/build/qtbase/src/corelib -IF:/build/qtbase/include/QtCore/6.5.0 -IF:/build/qtbase/include/QtCore/6.5.0/QtCore -IF:/qt6.5.0/qtbase/src/3rdparty/libpng -IF:/qt6.5.0/qtbase/src/3rdparty/harfbuzz-ng/include/harfbuzz -IF:/qt6.5.0/qtbase/src/3rdparty/freetype/include --output-json --output-dep-file -o F:/build/qtbase/src/gui/Gui_autogen/include/moc_qstandarditemmodel.cpp F:/qt6.5.0/qtbase/src/gui/itemmodels/qstandarditemmodel.h

Output
------


[1136/10883] Automatic MOC for target Network
FAILED: qtbase/src/network/Network_autogen/timestamp qtbase/src/network/Network_autogen/mocs_compilation.cpp F:/build/qtbase/src/network/Network_autogen/timestamp F:/build/qtbase/src/network/Network_autogen/mocs_compilation.cpp
C:\Windows\system32\cmd.exe /C "cd /D F:\build\qtbase\src\network && E:\CMake\bin\cmake.exe -E cmake_autogen F:/build/qtbase/src/network/CMakeFiles/Network_autogen.dir/AutogenInfo.json Debug && E:\CMake\bin\cmake.exe -E touch F:/build/qtbase/src/network/Network_autogen/timestamp && E:\CMake\bin\cmake.exe -E cmake_transform_depfile Ninja gccdepfile F:/qt6.5.0 F:/qt6.5.0/qtbase/src/network F:/build F:/build/qtbase/src/network F:/build/qtbase/src/network/Network_autogen/deps F:/build/CMakeFiles/d/2f55aea764164960f9b94ee962cccdc55e9bcfaa3e06669093a5a4bbb7647bd7.d"

AutoMoc subprocess error
------------------------
The moc process failed to compile
  "SRC:/qtbase/src/network/kernel/qhostinfo_p.h"
into
  "BIN:/qtbase/src/network/Network_autogen/include/moc_qhostinfo_p.cpp"
included by
  "SRC:/qtbase/src/network/kernel/qhostinfo.cpp"
Process failed with return value 3221225477

Command
-------
F:/build/qtbase/bin/moc.exe -DNetwork_EXPORTS -DQT_ASCII_CAST_WARNINGS -DQT_BUILDING_QT -DQT_BUILD_NETWORK_LIB -DQT_CORE_LIB -DQT_DEPRECATED_WARNINGS -DQT_DISABLE_DEPRECATED_UP_TO=0x040800 -DQT_EXPLICIT_QFILE_CONSTRUCTION_FROM_PATH -DQT_LEAN_HEADERS=1 -DQT_MOC_COMPAT -DQT_NO_AS_CONST=1 -DQT_NO_CAST_TO_ASCII -DQT_NO_EXCEPTIONS -DQT_NO_FOREACH -DQT_NO_JAVA_STYLE_ITERATORS -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_NO_USING_NAMESPACE -DQT_USE_QSTRINGBUILDER -DQT_USE_SYSTEM_PROXIES -DQT_WARN_DEPRECATED_UP_TO=0x070000 -DUNICODE -DWIN32 -DWIN64 -D_CRT_SECURE_NO_WARNINGS -D_ENABLE_EXTENDED_ALIGNED_STORAGE -D_UNICODE -D_USE_MATH_DEFINES -D_WIN64 -D_WINDLL -IF:/build/qtbase/include -IF:/build/qtbase/include/QtNetwork -IF:/qt6.5.0/qtbase/src/network -IF:/build/qtbase/src/network -IF:/qt6.5.0/qtbase/src/network/kernel -IF:/build/qtbase/include/QtNetwork/6.5.0 -IF:/build/qtbase/include/QtNetwork/6.5.0/QtNetwork -IF:/qt6.5.0/qtbase/src/3rdparty/zlib/src -IF:/qt6.5.0/qtbase/src/3rdparty/libpsl -IF:/build/qtbase/include/QtCore -IF:/qt6.5.0/qtbase/mkspecs/win32-msvc -IF:/build/qtbase/src/corelib -IF:/build/qtbase/include/QtCore/6.5.0 -IF:/build/qtbase/include/QtCore/6.5.0/QtCore --output-json -D_WINSOCK_DEPRECATED_NO_WARNINGS --output-dep-file -o F:/build/qtbase/src/network/Network_autogen/include/moc_qhostinfo_p.cpp F:/qt6.5.0/qtbase/src/network/kernel/qhostinfo_p.h

Output
------
......

Axel Spoerl

Hi,

looking at the system configuration, nothing shouts out that it's wrong.
A few questions though:

why 6.5.0, not the latest patch release 6.5.6?
are you using a normal command line? Or the x64 developer command line from MSVC 2022?
has the same issue occurred on the first attempt? Otherwise wipe the build tree and try again.
I don't expect much of it, but try just typing "ninja" instead of running cmake directly.
is a virus scanner getting in your way in the build directory?
does restarting the build lead to exactly the same error messages, or are other files affected with similar error messages each time? => It's a known issue on Windows, that parallel builds cause file access conflicts and you need to start over a few times. That's not your problem, if it's exactly the same files and error messages each time.

Christian Ehrlicher

... and why do you want to compile Qt by yourself?

cmcm

@Axel-Spoerl said in Error during build from source （AutoMOC）:

Hi,

looking at the system configuration, nothing shouts out that it's wrong.
A few questions though:

why 6.5.0, not the latest patch release 6.5.6?

are you using a normal command line? Or the x64 developer command line from MSVC 2022?

has the same issue occurred on the first attempt? Otherwise wipe the build tree and try again.

I don't expect much of it, but try just typing "ninja" instead of running cmake directly.

is a virus scanner getting in your way in the build directory?

does restarting the build lead to exactly the same error messages, or are other files affected with similar error messages each time? => It's a known issue on Windows, that parallel builds cause file access conflicts and you need to start over a few times. That's not your problem, if it's exactly the same files and error messages each time.

I’m using version 6.5.0 because I learned that 6.5 is an LTS version.
I’m using the x64 developer command line from MSVC 2022.
The same "Automatic MOC for XXX" error occurs, but for different files each time I try.
I don’t have any virus scanner enabled.
I tried running cmake --build . --parallel 1 again, and although it compiled successfully, it was very slow.

Perhaps I should accept the fact that parallel builds may lead to temporary errors.

Christian Ehrlicher

@cmcm said in Error during build from source （AutoMOC）:

I’m using version 6.5.0 because I learned that 6.5 is an LTS version.

There is no advantage for a non-paying customer to stick at a LTS version at all.
Use the pre-compiled binaries from the Qt online installer - much easier to use and no problems during compilation.

jsulm

@cmcm said in Error during build from source （AutoMOC）:

I’m using version 6.5.0 because I learned that 6.5 is an LTS version.

All minor 6.5 versions are LTS (like 6.5.6), not just 6.5.0

ankou29666

if you want to benefit from an LTS, even with free version of Qt, you have to use the latest minor release available, that is 6.5.6, which brings some bugfixes and security patches.
If you use 6.5.0, you won't benefit those fixes that have been introduced from 6.5.1 to 6.5.6.
And it's the same for any version, not only LTS.

@Christian-Ehrlicher said in Error during build from source （AutoMOC）:

There is no advantage for a non-paying customer to stick at a LTS version at all.

I personnaly prefer using the latest LTS over latest version when I don't need the new features as new features also come along with potential new bugs and security issues.

Use the pre-compiled binaries from the Qt online installer - much easier to use and no problems during compilation.

I agree, self-building is not needed.