为什么我不能构建opencv WITH_QT？

Question

我已经在Windows 7 x64上安装了Qt5.12。以及CMake 3.16。

我想构建OpenCV-4.1.2。因此，在cmake中，我检查了WITH_QT，并将QT5_DIR指定为：C:\Qt\5.12.6，然后单击Configure。但我得到了这个错误：

CMake Error at cmake/OpenCVFindLibsGUI.cmake:18 (find_package):
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.
Call Stack (most recent call first):
CMakeLists.txt:669 (include)"

Answer 1

我终于明白了：我在Qt目录中搜索了Qt5Config.cmake，并在："C:\Qt\5.12.6\msvc2017_64\lib\cmake\Qt5"中找到了它。

• 现在我在CMake中指定了这个目录，然后单击configure。一切都很好。谢谢大家