pip install error: RuntimeError: Unsupported compiler -- at least C++11 support is needed

Question

I am trying to install pyserini, and it stuck at collecting nmslib>=2.1.1 error message image It's previous issue is clang: error: the clang compiler does not support '-march=native' error: command '/usr/bin/clang' failed with exit code 1 which I resolved by changing to clang 14.0.0 However, there is an new issue with Unsupported compiler. Is there anyway to solve this?

I tried method from https://github.com/facebookresearch/fastText/issues/1196 with apt-get install build-essential -y sudo apt-get install python3-dev None of them worked

Answer 1

Aha! I had the same problem, tried out the last suggestion from the github link you posted:

sudo apt install build-essential

this apparently installs a C++ compiler... And it worked for me!

Hope this helps.

Answer 2

I met this problem and solved it by install 'gcc' and 'gcc-c++' like microdnf install -y gcc gcc-c++ and then pip3 reinstalling the lib successfully.