linux – CMAKE_PREFIX_PATH无法帮助CMake查找Qt5

内容导读

互联网集市收集整理的这篇技术教程文章主要介绍了linux – CMAKE_PREFIX_PATH无法帮助CMake查找Qt5，小编现在分享给大家，供广大互联网技能从业者学习和参考。文章包含3801字，纯文字阅读大概需要6分钟。

内容图文

从这里：https://stackoverflow.com/a/28327499/462608

我试过这个：

cmake_minimum_required(VERSION 2.8.12)

project(qtquick_hello_cmake)

set(CMAKE_PREFIX_PATH "/opt/Qt5.9.1/5.9.1/")

set(CMAKE_INCLUDE_CURRENT_DIR ON)
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)

find_package(Qt5 COMPONENTS Quick Core REQUIRED)

qt5_add_resources(RESOURCES qml.qrc)

add_executable(${PROJECT_NAME} "main.cpp" "qml.qrc")

qt5_use_modules(${PROJECT_NAME} Quick Core)

target_link_libraries(${PROJECT_NAME} Qt5::Core Qt5::Quick)

这是cmake的输出.

:~/junk/qtquick_hello_cmake$cmake .
CMake Error at CMakeLists.txt:11 (find_package):
  By not providing "FindQt5.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "Qt5", but
  CMake did not find one.

  Could not find a package configuration file provided by "Qt5" with any of
  the following names:

    Qt5Config.cmake
    qt5-config.cmake

  Add the installation prefix of "Qt5" to CMAKE_PREFIX_PATH or set "Qt5_DIR"
  to a directory containing one of the above files.  If "Qt5" provides a
  separate development package or SDK, be sure it has been installed.


-- Configuring incomplete, errors occurred!
See also "/home/.../junk/qtquick_hello_cmake/CMakeFiles/CMakeOutput.log".

这表明/opt/Qt5.9.1/确实存在.

:~/junk/qtquick_hello_cmake$cd /opt/Qt5.9.1/5.9.1/
:/opt/Qt5.9.1/5.9.1$ls
android_armv7  android_x86  gcc_64  Src

这里我使用-DCMAKE选项运行cmake,但输出仍然相同：

:~/junk/qtquick_hello_cmake$cmake -DCMAKE_PREFIX_PATH=/opt/Qt5.9.1/5.9.1/ -DWITH_QT5=1 .
CMake Error at CMakeLists.txt:11 (find_package):
  By not providing "FindQt5.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "Qt5", but
  CMake did not find one.

  Could not find a package configuration file provided by "Qt5" with any of
  the following names:

    Qt5Config.cmake
    qt5-config.cmake

  Add the installation prefix of "Qt5" to CMAKE_PREFIX_PATH or set "Qt5_DIR"
  to a directory containing one of the above files.  If "Qt5" provides a
  separate development package or SDK, be sure it has been installed.


-- Configuring incomplete, errors occurred!
See also "/home/.../junk/qtquick_hello_cmake/CMakeFiles/CMakeOutput.log".

目录的内容：

:~/junk/qtquick_hello_cmake$ls
CMakeCache.txt  CMakeFiles  CMakeLists.txt  main.cpp  main.qml  qml.qrc

解决方法:

我安装了以下缺少的包：

sudo apt-get install qtbase5-dev
sudo apt-get install qtdeclarative5-dev

现在不需要附加任何类型的前缀：

    :~/junk/qtquick_hello_cmake$cat CMakeLists.txt
    cmake_minimum_required(VERSION 2.8.12)

    project(qtquick_hello_cmake)

    set(CMAKE_INCLUDE_CURRENT_DIR ON)
    set(CMAKE_AUTOMOC ON)
    set(CMAKE_AUTORCC ON)

    find_package(Qt5 COMPONENTS Quick Core REQUIRED)

    qt5_add_resources(RESOURCES qml.qrc)

    add_executable(${PROJECT_NAME} "main.cpp" "qml.qrc")

    qt5_use_modules(${PROJECT_NAME} Quick Core)

    target_link_libraries(${PROJECT_NAME} Qt5::Core Qt5::Quick)


:~/junk/qtquick_hello_cmake$ls
build  CMakeLists.txt  main.cpp  main.qml  qml.qrc

:~/junk/qtquick_hello_cmake$cd build/
:~/junk/qtquick_hello_cmake/build$rm -rf *

:~/junk/qtquick_hello_cmake/build$cmake ../
-- The C compiler identification is GNU 4.8.4
-- The CXX compiler identification is GNU 4.8.4
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Configuring done
-- Generating done
-- Build files have been written to: /home/.../junk/qtquick_hello_cmake/build

错误现在消失了.

谢谢：
https://answers.ros.org/question/236324/could-not-find-a-package-configuration-file-provided-by-qt5widgets/
https://askubuntu.com/questions/508503/whats-the-development-package-for-qt5-in-14-04

内容总结

以上是互联网集市为您收集整理的linux – CMAKE_PREFIX_PATH无法帮助CMake查找Qt5全部内容，希望文章能够帮你解决linux – CMAKE_PREFIX_PATH无法帮助CMake查找Qt5所遇到的程序开发问题。 如果觉得互联网集市技术教程内容还不错，欢迎将互联网集市网站推荐给程序员好友。

内容备注

版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 gblab@vip.qq.com 举报，一经查实，本站将立刻删除。

内容手机端

---