做网站的详细流程,佛山网站建设专业公司,摄影网站设计思想,网站网讯前言 再此之前请确保你的环境变量是否配置#xff0c;这是总共需要配置的环境变量 E:\cmake\bin E:\OpenCv\opencv\build\x64\vc15\bin F:\Qt\Tools\mingw730_64\bin F:\Qt\5.12.4\mingw73_64\bin 问题一#xff1a;
CMake Error: CMake was unable to find a build program…前言 再此之前请确保你的环境变量是否配置这是总共需要配置的环境变量 E:\cmake\bin E:\OpenCv\opencv\build\x64\vc15\bin F:\Qt\Tools\mingw730_64\bin F:\Qt\5.12.4\mingw73_64\bin 问题一
CMake Error: CMake was unable to find a build program corresponding to MinGW Makefiles. CMAKE_MAKE_PROGRAM is not set. You probably need to select a different build tool.解决
双击修改为mingw32-make.exe路径重新configure就行了
问题二
CMake Error at cmake/OpenCVFindLibsGUI.cmake:18 (find_package):Could not find a package configuration file provided by Qt5 with any ofthe following names:Qt5Config.cmakeqt5-config.cmakeAdd the installation prefix of Qt5 to CMAKE_PREFIX_PATH or set Qt5_DIRto a directory containing one of the above files. If Qt5 provides aseparate development package or SDK, be sure it has been installed.
Call Stack (most recent call first):CMakeLists.txt:698 (include)解决
双击修改为QT5路径即可重新configure就行了
问题三
CMake Warning at cmake/OpenCVDownload.cmake:202 (message):FFMPEG: Download failed: 6;Couldnt resolve host nameFor details please refer to the download log file:E:/OpenCv/opencv/opencv_bulid/CMakeDownloadLog.txt
Call Stack (most recent call first):3rdparty/ffmpeg/ffmpeg.cmake:20 (ocv_download)modules/videoio/cmake/detect_ffmpeg.cmake:14 (download_win_ffmpeg)modules/videoio/cmake/init.cmake:3 (include)modules/videoio/cmake/init.cmake:30 (add_backend)cmake/OpenCVModule.cmake:298 (include)cmake/OpenCVModule.cmake:361 (_add_modules_1)modules/CMakeLists.txt:7 (ocv_glob_modules)解决
打开CMakeDownloadLog.txt会发现它说缺少
opencv_videoio_ffmpeg.dll
opencv_videoio_ffmpeg_64.dll
f8e65dbe4a3b4eedc0d2997e07c3f3fd-ffmpeg_version.cmake
让你去手动下载并把下载地址贴了出来
https://raw.githubusercontent.com/opencv/opencv_3rdparty/6152e132572dfdaa32887eabeb7199bef49b14dc/ffmpeg/opencv_videoio_ffmpeg.dll
https://raw.githubusercontent.com/opencv/opencv_3rdparty/6152e132572dfdaa32887eabeb7199bef49b14dc/ffmpeg/opencv_videoio_ffmpeg_64.dll
https://raw.githubusercontent.com/opencv/opencv_3rdparty/6152e132572dfdaa32887eabeb7199bef49b14dc/ffmpeg/ffmpeg_version.cmake
前两个打开后就会自动下载第三个网址打开后会有一个网址点击另存txt改一下后缀就行源文件上更改是不可以的 最后把下载来的三个文件与之前文件替换一下即可注意文件名称要一致
后记 有什么问题欢迎探讨✨✨✨✨
