Lightgbm OSError, Library not loaded
I had the same exact problem on M1 MAC. I have tried to import it through Jupiter notebook. This command solved the problem:
conda install lightgbm
All the above answers didn't work for me.
On Mac, if I installed the libomp using brew fixed the problem: Refer: link
brew install libomp
I find a similar problem here LightGBM
The answer and comment may help you.
Build LightGBM in Mac:
brew install cmake brew install gcc --without-multilib git clone --recursive https://github.com/Microsoft/LightGBM ; cd LightGBM mkdir build ; cd build cmake .. make -j
cd ../python-packages sudo python setup.py install --precompile
As stated by @ecodan, you might need to force Mac to use GCC and G++ instead of the default compiler. So instead of building with
cmake .., try:
cmake -DCMAKE_C_COMPILER=/usr/local/Cellar/gcc/6.1.0/bin/gcc-6 -DCMAKE_CXX_COMPILER=/usr/local/Cellar/gcc/6.1.0/bin/g++-6 ..
ajusting the versions to match yours.