# Errors occured when I build OpenCV 4.6.0 **URL:** \ **Category:** Uncategorized\ **Tags:** build, videoio\ **Created:** [December 26, 2022, 12:57am UTC](https://forum.opencv.org/t/errors-occured-when-i-build-opencv-4-6-0/11421 "2022-12-26T00:57:08Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![wold9168](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.opencv.org/wold9168/32/6835_2.png) [@wold9168](https://forum.opencv.org/u/wold9168)\ **Post date:** [December 26, 2022, 12:57am UTC](https://forum.opencv.org/t/errors-occured-when-i-build-opencv-4-6-0/11421/1 "2022-12-26T00:57:09Z")
Arch Linux 64bit. Something went wrong when I build OpenCV 4.6.0. It seemed that the module _videoio_ wasn’t built successfully. I have no idea with the problem above. The output of console is here: [Configuration](https://gist.github.com/wold9168/4ef887143c219c37666648386ebbc172) [Building(Stderr first, and stdout followed)](https://gist.github.com/wold9168/6b1df12ac231ffa023aebbb239b637cd) The command I used to build is `env LC_ALL=C cmake --build . -j10 > ../cmakelog_build.txt 2> ../cmakelog_build_error.txt` ---
**Author:** ![wold9168](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.opencv.org/wold9168/32/6835_2.png) [@wold9168](https://forum.opencv.org/u/wold9168)\ **Post date:** [December 26, 2022, 3:17am UTC](https://forum.opencv.org/t/errors-occured-when-i-build-opencv-4-6-0/11421/2 "2022-12-26T03:17:18Z")
I noticed that I can normally build the code of the repository I pulled from the GitHub directly, but the code I download from the release page still cannot be built. That doubts me a lot. So I use `diff` to compare the file `ffmpeg_codecs.hpp` in `modules/videoio/src`, and find that the problem above is fixed in [PR#22357](https://github.com/opencv/opencv/pull/22357). My friends. If you face the same problem (compile errors come from `ffmpeg_codecs.hpp`) as mine, I think you can add `#include `after the line 62 of `ffmpeg_codecs.hpp`. That works in my computer. Sorry for my poor English.