未知的CMake Qt5命令

我目前正在尝试使用CMake构建一个项目。 这是我得到的输出

CMake Warning at ext/quazip/CMakeLists.txt:4 (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.


CMake Error at ext/quazip/CMakeLists.txt:19 (qt5_wrap_cpp):
  Unknown CMake command "qt5_wrap_cpp".

我已经安装了Qt Creator，我不确定为什么会出现此错误。 我在网上四处看看，他们说我应该补充

set(QT_USE_QTXML true)
FIND_PACKAGE(Qt5)

在ext/quazip/CMakeLists.txt中的#项目之后 我已经这样做了，但我仍然得到这个错误的任何建议

更新： 因此，我在我的顶级CMakeLists.txt中添加了以下内容

find_package( Qt5Core REQUIRED )
find_package( Qt5Widgets REQUIRED )
find_package( Qt5Gui REQUIRED )
find_package( Qt5OpenGL REQUIRED )
find_package( Qt5Multimedia REQUIRED )
find_package( Qt5WebKitWidgets REQUIRED )
find_package( Qt5Xml REQUIRED )

#### Qt5
find_package( Qt5Core REQUIRED )
find_package( Qt5Widgets REQUIRED )
find_package( Qt5Gui REQUIRED )
find_package( Qt5OpenGL REQUIRED )
find_package( Qt5Multimedia REQUIRED )
find_package( Qt5WebKitWidgets REQUIRED )
find_package( Qt5Xml REQUIRED )
set( CMAKE_AUTOMOC ON )  # to automoc remove the need to wrap by hand

我清除了缓存，然后进行了配置。在这一点上，我得到以下错误

CMake Error at CMakeLists.txt:3 (find_package):
  By not providing "FindQt5Core.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "Qt5Core", but
  CMake did not find one.

  Could not find a package configuration file provided by "Qt5Core" with any
  of the following names:

    Qt5CoreConfig.cmake
    qt5core-config.cmake

  Add the installation prefix of "Qt5Core" to CMAKE_PREFIX_PATH or set
  "Qt5Core_DIR" to a directory containing one of the above files.  If
  "Qt5Core" provides a separate development package or SDK, be sure it has
  been installed.


Configuring incomplete, errors occurred!

---

要在CMakeLists.txt中使用

Qt5

，您应该使用（组合）这些功能：

在顶级CMakeLists.txt中

find_package( Qt5Core REQUIRED )
find_package( Qt5Widgets REQUIRED )
find_package( Qt5Gui REQUIRED )
find_package( Qt5OpenGL REQUIRED )
find_package( Qt5Multimedia REQUIRED )
find_package( Qt5WebKitWidgets REQUIRED )
find_package( Qt5Xml REQUIRED )

#### Qt5
find_package( Qt5Core REQUIRED )
find_package( Qt5Widgets REQUIRED )
find_package( Qt5Gui REQUIRED )
find_package( Qt5OpenGL REQUIRED )
find_package( Qt5Multimedia REQUIRED )
find_package( Qt5WebKitWidgets REQUIRED )
find_package( Qt5Xml REQUIRED )
set( CMAKE_AUTOMOC ON )  # to automoc remove the need to wrap by hand

编辑：

---

Qt5 cmake模块由Qt5本身提供，因此您需要告诉cmake在哪里可以找到qt。请参阅。

使用

qt5\u使用模块

是错误的。它仅适用于CMake 2.8.9和2.8.10的用户，而不适用于其他用户。