IPPICV: Download failed: 6；“Couldn‘t resolve host name“

时间：2025-04-10 08:44:58

windows10+opencv+cmake
cmake编译opencv遇见下列错误的解决方法

CMake Warning at cmake/:193 (message):
  IPPICV: Download failed: 6;"Couldn't resolve host name"

  For details please refer to the download log file:

  C:/Users/freeyu/Desktop/opencv/opencv-4.1.0/cudabuild/

Call Stack (most recent call first):
  3rdparty/ippicv/:42 (ocv_download)
  cmake/:243 (download_ippicv)
  cmake/:12 (include)
  :773 (include)


CMake Warning at cmake/:193 (message):
  ADE: Download failed: 35;"SSL connect error"

  For details please refer to the download log file:

  C:/Users/freeyu/Desktop/opencv/opencv-4.1.0/cudabuild/

Call Stack (most recent call first):
  modules/gapi/cmake/:10 (ocv_download)
  modules/gapi/cmake/:16 (include)
  cmake/:312 (include)
  cmake/:375 (_add_modules_1)
  modules/:7 (ocv_glob_modules)


CMake Warning at cmake/:193 (message):
  FFMPEG: Download failed: 6;"Couldn't resolve host name"

  For details please refer to the download log file:

  C:/Users/freeyu/Desktop/opencv/opencv-4.1.0/cudabuild/

Call Stack (most recent call first):
  3rdparty/ffmpeg/:20 (ocv_download)
  modules/videoio/cmake/detect_ffmpeg.cmake:14 (download_win_ffmpeg)
  modules/videoio/cmake/:3 (include)
  modules/videoio/cmake/:24 (add_backend)
  cmake/:312 (include)
  cmake/:375 (_add_modules_1)
  modules/:7 (ocv_glob_modules)

CMake Warning at cmake/:193 (message):
  FFMPEG: Download failed: 6;"Couldn't resolve host name"

  For details please refer to the download log file:

  C:/Users/freeyu/Desktop/opencv/opencv-4.1.0/cudabuild/

Call Stack (most recent call first):
  3rdparty/ffmpeg/:20 (ocv_download)
  modules/videoio/cmake/detect_ffmpeg.cmake:14 (download_win_ffmpeg)
  modules/videoio/cmake/:3 (include)
  modules/videoio/cmake/:24 (add_backend)
  cmake/:312 (include)
  cmake/:375 (_add_modules_1)
  modules/:7 (ocv_glob_modules)

CMake Warning at cmake/:193 (message):
  FFMPEG: Download failed: 6;"Couldn't resolve host name"

  For details please refer to the download log file:

  C:/Users/freeyu/Desktop/opencv/opencv-4.1.0/cudabuild/

Call Stack (most recent call first):
  3rdparty/ffmpeg/:20 (ocv_download)
  modules/videoio/cmake/detect_ffmpeg.cmake:14 (download_win_ffmpeg)
  modules/videoio/cmake/:3 (include)
  modules/videoio/cmake/:24 (add_backend)
  cmake/:312 (include)
  cmake/:375 (_add_modules_1)
  modules/:7 (ocv_glob_modules)

解决方法

在使用cmake编译时会在opencv下新建一个文件夹，我的是cudabuild
在cudabuild文件夹下找到

以 **IPPICV: Download failed: 6;“Couldn’t resolve host name”**错误为例
在找到对应IPPICV信息

IPPICV信息

#do_unpack "ippicv_2019_win_intel64_20180723_general.zip" "1d222685246896fe089f88b8858e4b2f" "/opencv/opencv_3rdparty/32e315a5b106a7b89dbed51c28f8120a48b368b4/ippicv/ippicv_2019_win_intel64_20180723_general.zip" "C:/Users/freeyu/Desktop/opencv/opencv-4.1.0/cudabuild/3rdparty/ippicv"
#cmake_download "C:/Users/freeyu/Desktop/opencv/opencv-4.1.0/sources/.cache/ippicv/1d222685246896fe089f88b8858e4b2f-ippicv_2019_win_intel64_20180723_general.zip" "/opencv/opencv_3rdparty/32e315a5b106a7b89dbed51c28f8120a48b368b4/ippicv/ippicv_2019_win_intel64_20180723_general.zip"
  • 在IPPCV信息里找到下载路径/opencv/opencv_3rdparty/32e315a5b106a7b89dbed51c28f8120a48b368b4/ippicv/ippicv_2019_win_intel64_20180723_general.zip
  • 打开/，复制路径，就会下载ippicv_2019_win_intel64_20180723_general.zip
  • 在IPPCV信息里找到C:/Users/freeyu/Desktop/opencv/opencv-4.1.0/sources/.cache/ippicv/1d222685246896fe089f88b8858e4b2f-ippicv_2019_win_intel64_20180723_general.zip
  • 把下载的文件重命名为1d222685246896fe089f88b8858e4b2f-ippicv_2019_win_intel64_20180723_general.zip
  • 把重命名的文件放入C:/Users/freeyu/Desktop/opencv/opencv-4.1.0/sources/.cache/ippicv中，原来的文件直接可以查看一下是0kb，直接删掉就行

其他问题的解决方法同理

相关文章