[英]CMake cannot find packages within Qt6 installation
我正在尝试通过 CMake 构建项目,并将环境变量 Qt6_DIR 设置为包含 Qt6Config.cmake 的目录。 但是,构建似乎无法在 Qt6 安装中找到它需要的任何其他依赖项,我不确定接下来需要做什么。 我看到对其他可能的环境变量的引用,例如“Qt6CoreTools_DIR”,我想知道我是否真的需要独立设置这些变量,或者是否有一个包含需要正确链接的信息的工具链。
-- GUI Frontend: Qt6
CMake Warning at C:/Program Files/CMake/share/cmake-3.20/Modules/CMakeFindDependencyMacro.cmake:47 (find_package):
By not providing "FindQt6CoreTools.cmake" in CMAKE_MODULE_PATH this project
has asked CMake to find a package configuration file provided by
"Qt6CoreTools", but CMake did not find one.
Could not find a package configuration file provided by "Qt6CoreTools"
(requested version 6.2.3) with any of the following names:
Qt6CoreToolsConfig.cmake
qt6coretools-config.cmake
Add the installation prefix of "Qt6CoreTools" to CMAKE_PREFIX_PATH or set
"Qt6CoreTools_DIR" to a directory containing one of the above files. If
"Qt6CoreTools" provides a separate development package or SDK, be sure it
has been installed.
Call Stack (most recent call first):
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6WidgetsTools/Qt6WidgetsToolsDependencies.cmake:9 (find_dependency)
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6WidgetsTools/Qt6WidgetsToolsConfig.cmake:34 (include)
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6Widgets/Qt6WidgetsDependencies.cmake:71 (find_package)
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6Widgets/Qt6WidgetsConfig.cmake:40 (include)
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6/Qt6Config.cmake:177 (find_package)
src/CMakeLists.txt:22 (find_package)
CMake Warning at C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6Widgets/Qt6WidgetsDependencies.cmake:71 (find_package):
Found package configuration file:
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6WidgetsTools/Qt6WidgetsToolsConfig.cmake
but it set Qt6WidgetsTools_FOUND to FALSE so package "Qt6WidgetsTools" is
considered to be NOT FOUND. Reason given by package:
Qt6WidgetsTools could not be found because dependency Qt6CoreTools could
not be found.
Call Stack (most recent call first):
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6Widgets/Qt6WidgetsConfig.cmake:40 (include)
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6/Qt6Config.cmake:177 (find_package)
src/CMakeLists.txt:22 (find_package)
CMake Warning at C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6/Qt6Config.cmake:177 (find_package):
Found package configuration file:
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6Widgets/Qt6WidgetsConfig.cmake
but it set Qt6Widgets_FOUND to FALSE so package "Qt6Widgets" is considered
to be NOT FOUND. Reason given by package:
Target "Qt6::Widgets" was not found.
Call Stack (most recent call first):
src/CMakeLists.txt:22 (find_package)
-- Could NOT find WrapVulkanHeaders (missing: Vulkan_INCLUDE_DIR)
-- Could NOT find Qt6CoreTools (missing: Qt6CoreTools_DIR)
CMake Warning at C:/Program Files/CMake/share/cmake-3.20/Modules/CMakeFindDependencyMacro.cmake:47 (find_package):
Found package configuration file:
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6Core/Qt6CoreConfig.cmake
but it set Qt6Core_FOUND to FALSE so package "Qt6Core" is considered to be
NOT FOUND. Reason given by package:
Target "Qt6::Core" was not found.
Call Stack (most recent call first):
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6/QtPublicDependencyHelpers.cmake:14 (find_dependency)
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6OpenGL/Qt6OpenGLDependencies.cmake:91 (_qt_internal_find_dependencies)
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6OpenGL/Qt6OpenGLConfig.cmake:40 (include)
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6/Qt6Config.cmake:177 (find_package)
src/CMakeLists.txt:22 (find_package)
CMake Warning at C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6/Qt6Config.cmake:177 (find_package):
Found package configuration file:
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6OpenGL/Qt6OpenGLConfig.cmake
but it set Qt6OpenGL_FOUND to FALSE so package "Qt6OpenGL" is considered to
be NOT FOUND. Reason given by package:
Qt6OpenGL could not be found because dependency Qt6Core could not be found.
Call Stack (most recent call first):
src/CMakeLists.txt:22 (find_package)
-- Could NOT find WrapVulkanHeaders (missing: Vulkan_INCLUDE_DIR)
-- Could NOT find Qt6CoreTools (missing: Qt6CoreTools_DIR)
CMake Warning at C:/Program Files/CMake/share/cmake-3.20/Modules/CMakeFindDependencyMacro.cmake:47 (find_package):
Found package configuration file:
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6Core/Qt6CoreConfig.cmake
but it set Qt6Core_FOUND to FALSE so package "Qt6Core" is considered to be
NOT FOUND. Reason given by package:
Target "Qt6::Core" was not found.
Call Stack (most recent call first):
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6/QtPublicDependencyHelpers.cmake:14 (find_dependency)
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6OpenGL/Qt6OpenGLDependencies.cmake:91 (_qt_internal_find_dependencies)
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6OpenGL/Qt6OpenGLConfig.cmake:40 (include)
C:/Program Files/CMake/share/cmake-3.20/Modules/CMakeFindDependencyMacro.cmake:47 (find_package)
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6/QtPublicDependencyHelpers.cmake:14 (find_dependency)
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6OpenGLWidgets/Qt6OpenGLWidgetsDependencies.cmake:91 (_qt_internal_find_dependencies)
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6OpenGLWidgets/Qt6OpenGLWidgetsConfig.cmake:40 (include)
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6/Qt6Config.cmake:177 (find_package)
src/CMakeLists.txt:22 (find_package)
CMake Warning at C:/Program Files/CMake/share/cmake-3.20/Modules/CMakeFindDependencyMacro.cmake:47 (find_package):
Found package configuration file:
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6OpenGL/Qt6OpenGLConfig.cmake
but it set Qt6OpenGL_FOUND to FALSE so package "Qt6OpenGL" is considered to
be NOT FOUND. Reason given by package:
Qt6OpenGL could not be found because dependency Qt6Core could not be found.
Call Stack (most recent call first):
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6/QtPublicDependencyHelpers.cmake:14 (find_dependency)
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6OpenGLWidgets/Qt6OpenGLWidgetsDependencies.cmake:91 (_qt_internal_find_dependencies)
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6OpenGLWidgets/Qt6OpenGLWidgetsConfig.cmake:40 (include)
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6/Qt6Config.cmake:177 (find_package)
src/CMakeLists.txt:22 (find_package)
CMake Warning at C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6/Qt6Config.cmake:177 (find_package):
Found package configuration file:
C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6OpenGLWidgets/Qt6OpenGLWidgetsConfig.cmake
but it set Qt6OpenGLWidgets_FOUND to FALSE so package "Qt6OpenGLWidgets" is
considered to be NOT FOUND. Reason given by package:
Qt6OpenGLWidgets could not be found because dependency Qt6OpenGL could not
be found.
Call Stack (most recent call first):
src/CMakeLists.txt:22 (find_package)
CMake Error at src/CMakeLists.txt:22 (find_package):
Found package configuration file:
C:/Qt6/6.2.3/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 Qt component "Widgets".
Expected Config file at
"C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6Widgets/Qt6WidgetsConfig.cmake" exists
Failed to find Qt component "OpenGL".
Expected Config file at
"C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6OpenGL/Qt6OpenGLConfig.cmake" exists
Failed to find Qt component "OpenGLWidgets".
Expected Config file at
"C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6OpenGLWidgets/Qt6OpenGLWidgetsConfig.cmake"
exists
将此添加到您的根 cmake。
list(APPEND CMAKE_PREFIX_PATH "~/Qt/6.3.0/gcc_64")
根据需要更改路径。
来自Qt 文档:
There are different ways you can tell CMake about Qt, but the most common and recommended approach is to set the CMake cache variable CMAKE_PREFIX_PATH to include the Qt 6 installation prefix.
所以你应该将 C:/Qt6/6.2.3/mingw_64/ 添加到CMAKE_PREFIX_PATH分号分隔的列表中。
您可以检查项目提供的CMAKE_PREFIX_PATH
脚本之一是否设置或修改了 CMAKE_PREFIX_PATH。
我在 Linux OS 上的不同项目中遇到了同样的问题,最终似乎可行的是将名为QT_PREFIX
的项目特定变量设置为/opt/Qt/6.2.4/gcc_64/
。
通过查看项目的文件CMakeLists_Dependencies.cmake
我注意到CMAKE_PREFIX_PATH
是由这样的脚本设置的: set(CMAKE_PREFIX_PATH "${QT_PREFIX}/lib/cmake")
。 我的猜测是,这条语句掩盖了我在命令行中对CMAKE_PREFIX_PATH
的定义。
我通过在set(CMAKE_PREFIX_PATH "${QT_PREFIX}/lib/cmake")
下方插入语句message(CMAKE_PREFIX_PATH="${CMAKE_PREFIX_PATH}")
来检查它。
不设置QT_PREFIX
时,output 为CMAKE_PREFIX_PATH="/lib/cmake"
,无论我是否在命令行中包含-DCMAKE_PREFIX_PATH=…
。 ( /lib/cmake/
在我的情况下不是有效的路径。)
如果QT_DIR
如上所述设置,output 为CMAKE_PREFIX_PATH="/opt/Qt/6.2.4/gcc_64//lib/cmake"
,这使得 cmake 能够找到目录,即使是双斜杠。
根据QTBUG-97615 ,不支持使用单个Qt6_DIR
配置构建的正确支持(还没有?),配置应用程序构建的“官方”方式是使用CMAKE_PREFIX_PATH
(如其他答案中所建议)。
但是,如果您的工具不能轻松支持这种方法(如 VisualStudio/VSCode),那么有一种解决方法可以解决这种情况(我在挖掘 Qt6 的混乱 cmake 脚本时发现了它)。
您可以使用QT_ADDITIONAL_PACKAGES_PREFIX_PATH
来指定 Qt 根(与Qt6_DIR
一起最初挂钩它)。
命令行将如下所示(仅用于说明方法):
cmake -DQt6_DIR:PATH=C:/Qt6/6.2.3/mingw_64/lib/cmake/Qt6 -DQT_ADDITIONAL_PACKAGES_PREFIX_PATH=C:/Qt6/6.2.3/mingw_64..
这两个变量都可以通过 VisualStudio/VSCode 中的 UI 轻松配置。
快乐的建筑::)
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