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

最新推荐文章于 2025-06-11 14:52:34 发布

原创最新推荐文章于 2025-06-11 14:52:34 发布 · 6.5k 阅读

21 ·

CC 4.0 BY-SA版权

文章标签：

#c++ #opencv #windows

本文介绍了在Windows 10环境下使用CMake编译OpenCV时遇到的下载失败问题，如IPPICV、ADE和FFmpeg下载错误的解决步骤，包括查找错误日志、下载手动替换和文件路径调整等方法。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

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

CMake Warning at cmake/OpenCVDownload.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/CMakeDownloadLog.txt

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

CMake Warning at cmake/OpenCVDownload.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/CMakeDownloadLog.txt

Call Stack (most recent call first):
  modules/gapi/cmake/DownloadADE.cmake:10 (ocv_download)
  modules/gapi/cmake/init.cmake:16 (include)
  cmake/OpenCVModule.cmake:312 (include)
  cmake/OpenCVModule.cmake:375 (_add_modules_1)
  modules/CMakeLists.txt:7 (ocv_glob_modules)

CMake Warning at cmake/OpenCVDownload.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/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:24 (add_backend)
  cmake/OpenCVModule.cmake:312 (include)
  cmake/OpenCVModule.cmake:375 (_add_modules_1)
  modules/CMakeLists.txt:7 (ocv_glob_modules)

CMake Warning at cmake/OpenCVDownload.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/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:24 (add_backend)
  cmake/OpenCVModule.cmake:312 (include)
  cmake/OpenCVModule.cmake:375 (_add_modules_1)
  modules/CMakeLists.txt:7 (ocv_glob_modules)

CMake Warning at cmake/OpenCVDownload.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/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:24 (add_backend)
  cmake/OpenCVModule.cmake:312 (include)
  cmake/OpenCVModule.cmake:375 (_add_modules_1)
  modules/CMakeLists.txt: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CMakeDownloadLog.txt

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

IPPICV信息

#do_unpack "ippicv_2019_win_intel64_20180723_general.zip" "1d222685246896fe089f88b8858e4b2f" "https://raw.githubusercontent.com/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" "https://raw.githubusercontent.com/opencv/opencv_3rdparty/32e315a5b106a7b89dbed51c28f8120a48b368b4/ippicv/ippicv_2019_win_intel64_20180723_general.zip"

在IPPCV信息里找到下载路径https://raw.githubusercontent.com/opencv/opencv_3rdparty/32e315a5b106a7b89dbed51c28f8120a48b368b4/ippicv/ippicv_2019_win_intel64_20180723_general.zip
打开https://ghproxy.com/，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