Cannot find gn when configuring QtWebEngine

_qt-qt_

Hello. I'm building a qtwebengine from source to enable proprietary codecs.
When I configured the previous versions, gn was always found and there was no problem when building it.
But in 6.7.3 version, gn is not found though there is gn.exe file in the Qt directory and build failed. Is the build failing because gn cannot be found?

D:\Source\qtwebengine_6_7_3v\build>qt-configure-module.bat .. -webengine-proprietary-codecs
-- Windows 10 SDK version: 10.0.26100.0
'C:\Qt\6.7.3\msvc2019_64\bin\qt-cmake-private.bat' '-DQT_INTERNAL_CALLED_FROM_CONFIGURE:BOOL=TRUE' '-DINPUT_webengine_proprietary_codecs=yes' 'D:/Source/qtwebengine_6_7_3v'
-- The C compiler identification is MSVC 19.29.30156.0
-- The CXX compiler identification is MSVC 19.29.30156.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: C:/Program Files (x86)/Microsoft Visual Studio/2019/Professional/VC/Tools/MSVC/14.29.30133/bin/Hostx64/x64/cl.exe - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: C:/Program Files (x86)/Microsoft Visual Studio/2019/Professional/VC/Tools/MSVC/14.29.30133/bin/Hostx64/x64/cl.exe - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - not found
-- Found Threads: TRUE
-- Performing Test HAVE_STDATOMIC
-- Performing Test HAVE_STDATOMIC - Failed
-- Performing Test HAVE_STDATOMIC_WITH_LIB
-- Performing Test HAVE_STDATOMIC_WITH_LIB - Failed
-- Found WrapAtomic: TRUE
-- Building for multiple configurations: RelWithDebInfo;Debug.
-- Main configuration is: RelWithDebInfo.
-- Windows 10 SDK version: 10.0.26100.0

-- Configuration summary shown below. It has also been written to D:/Source/qtwebengine_6_7_3v/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:

WebEngine Repository Build Options:
  Build Ninja ............................ no
  Build Gn ............................... no
  Jumbo Build ............................ yes
  Developer build ........................ no
  Build QtWebEngine Modules:
    Build QtWebEngineCore ................ yes
    Build QtWebEngineWidgets ............. yes
    Build QtWebEngineQuick ............... yes
  Build QtPdf Modules:
    Build QtPdfWidgets ................... yes
    Build QtPdfQuick ..................... yes
Qt WebEngineCore:
  Embedded build ......................... no
  Full debug information ................. no
  Sanitizer support ...................... no
  Pepper Plugins ......................... yes
  Printing and PDF ....................... yes
  Proprietary Codecs ..................... yes
  Spellchecker ........................... yes
  Native Spellchecker .................... no
  WebRTC ................................. yes
  PipeWire over GIO ...................... no
  Geolocation ............................ yes
  WebChannel support ..................... yes
  Kerberos Authentication ................ yes
  Extensions ............................. yes
  Vulkan support ......................... yes
  Use v8 context snapshot ................ yes
  Build WebEngineDriver .................. yes
Qt WebEngineQuick:
  UI Delegates ........................... yes
Qt PDF:
  Support V8 ............................. no
  Support XFA ............................ no
  Support XFA-BMP ........................ no
  Support XFA-GIF ........................ no
  Support XFA-PNG ........................ no
  Support XFA-TIFF ....................... no
  Bitcode support ........................ no
  Use static runtime ..................... no


-- Configuring done (22.5s)
-- Generating done (2.1s)
-- Build files have been written to: D:/Source/qtwebengine_6_7_3v/build

jsulm

@_qt-qt_ Please either run configure with -v parameter or do what it suggests: Configure with --log-level=STATUS
Then you will get more details, else nobody can tell why it is not detected.