Qt6新建项目构建失败求助：默认生成文件未修改仍报错

环境与问题 #

使用Windows 11、Qt Creator 19.0.0、Qt6.11.0创建默认Qt Quick项目，未修改任何自动生成文件，构建时在自动QML类型注册阶段报错，终止码为2。

错误输出 #

jom: parallel job execution disabled for Makefile
[ 45%] Running moc --collect-json for target appuntitled
[ 50%] Generating meta_types/qt6appuntitled_metatypes.json
[ 54%] Automatic QML type registration for target appuntitled
jom: F:\shared\projects\tests\untitled\build\Desktop_Qt_6_11_0_MSVC2022_64bit-Debug\CMakeFiles\appuntitled.dir\build.make [appuntitled_qmltyperegistrations.cpp] Error 1
jom: F:\shared\projects\tests\untitled\build\Desktop_Qt_6_11_0_MSVC2022_64bit-Debug\CMakeFiles\Makefile2 [CMakeFiles\appuntitled.dir\all] Error 2
jom: F:\shared\projects\tests\untitled\build\Desktop_Qt_6_11_0_MSVC2022_64bit-Debug\CMakeFiles\Makefile2 [CMakeFiles\appuntitled.dir\rule] Error 2
jom: F:\shared\projects\tests\untitled\build\Desktop_Qt_6_11_0_MSVC2022_64bit-Debug\Makefile [appuntitled] Error 2
16:10:52: The command "D:\Qt\Tools\CMake_64\bin\cmake.exe --build F:/shared/projects/tests/untitled/build/Desktop_Qt_6_11_0_MSVC2022_64bit-Debug --target appuntitled" terminated with exit code 2.
16:10:52: Error while building/deploying project untitled (kit: Desktop Qt 6.11.0 MSVC2022 64bit)
16:10:52: When executing step "构建"
16:10:52: Elapsed time: 00:03.

自动生成的CMakeLists.txt #

cmake_minimum_required(VERSION 3.16)

project(untitled VERSION 0.1 LANGUAGES CXX)

set(CMAKE_CXX_STANDARD_REQUIRED ON)

find_package(Qt6 REQUIRED COMPONENTS Quick)

qt_standard_project_setup(REQUIRES 6.10)

qt_add_executable(appuntitled
    main.cpp
)

qt_add_qml_module(appuntitled
    URI untitled
    QML_FILES
        Main.qml
)

# Qt for iOS sets MACOSX_BUNDLE_GUI_IDENTIFIER automatically since Qt 6.1.
# If you are developing for iOS or macOS you should consider setting an
# explicit, fixed bundle identifier manually though.
set_target_properties(appuntitled PROPERTIES
#    MACOSX_BUNDLE_GUI_IDENTIFIER com.example.appuntitled
    MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
    MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
    MACOSX_BUNDLE TRUE
    WIN32_EXECUTABLE TRUE
)

target_link_libraries(appuntitled
    PRIVATE Qt6::Quick
)

install(TARGETS appuntitled
    BUNDLE DESTINATION .
    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
)

解决方法 #

• 检查项目路径，避免包含非ASCII字符或空格，改用纯英文短路径
• 禁用并行构建：在Qt Creator构建设置中，将jom并行任务数设为1；或在CMakeLists.txt开头添加set(CMAKE_JOB_POOLS qml_registration_job_pool=1)
• 临时注释掉CMakeLists.txt中的WIN32_EXECUTABLE TRUE，构建成功后再恢复该配置
• 更新CMake至3.28及以上版本（确保与Qt6.11兼容）
• 清理整个构建目录，重新运行CMake配置后再构建

内容的提问来源于stack exchange，提问作者Tang