OpenCV.js build error with CMake :Failed to fetch compiler version information
Hi, I've tried to build openCV.js with this tutorial : https://docs.opencv.org/ref/master/d4...
when using command python <opencv_src_dir>/platforms/js/build_js.py <build_dir>, I got a error message like below :
CMake Error at /Users/mac/Documents/dev/reactnative/emsdk/emscripten/1.38.13/cmake/Modules/Platform/Emscripten.cmake:111 (message):
Failed to fetch compiler version information with command "'/Users/mac/Documents/dev/react-native/emsdk/emscripten/1.38.13/emcc' -v"! Process returned with error code 1.
I checked whether emcc exists using sudo emcc- v
then it shows some info...
Could you give me some hints?
directory
opencv : /Users/mac/documents/dev/react-native/opencv/opencv
emsdk : /Users/mac/documents/dev/react-native/emsdk
cmake version : 3.12.3
build command : macui-MacBook-Air:opencv mac$ python ./platforms/js/build_js.py openCVlib --emscripten_dir ../../emsdk/emscripten/1.38.13
please be so nice, and replace the screenshot with a TEXT version, thank you !
(it's useless here, can't be quoted from, indexed for search, etc.)
we also need the opencv version used
i see this too. I'm using cmake 3.7.2, python 2.7.13, on raspberry pi debian stretch with opencv-3.3.1. Failed to fetch compiler version information with command "'/home/dana/emsdk/emscripten/tag-1.38.22/emcc' -v"! Process returned with error code 1.
Call Stack (most recent call first): /usr/share/cmake-3.7/Modules/CMakeDetermineSystem.cmake:88 (include) CMakeLists.txt:114 (project)
it appears that this script (emcc) requires python module named "tools" which isn't installed. I guess the answer will be to pip install it. (I did the trivial pip install and get libxml compile errors, so i expect i'll need to install the build-tools for python)
actually the python module named tools is part of emscripten, so it seems like the PYTHONPATH needs to point into the emscripten distro.
Do you have any new progress,I had the same problem