Installing unf_ext 0.0.7.2 not working

Question

So when I try running bundle install --without production it tells me that I am getting an error and that I need to Make sure that gem install unf_ext -v

Answer 1

I got same problem. It happens after I upgrading my macOS to newer version. Somehows, upgrading mess up /usr/local/include. So that I removed it and run install. It worked

sudo mv /usr/local/include/ /usr/local/include.delete_me