Install protoc for Linux and Mac
Linux
PROTOC_ZIP=protoc-3.15.8-linux-x86_64.zip
curl -OL https://github.com/google/protobuf/releases/download/v3.15.8/$PROTOC_ZIP
sudo unzip -o $PROTOC_ZIP -d /usr/local bin/protoc
sudo unzip -o $PROTOC_ZIP -d /usr/local include/*
rm -f $PROTOC_ZIP
Mac OS X
brew install protobuf
Alternately, if you don’t have Homebrew.
PROTOC_ZIP=protoc-3.15.8-osx-x86_64.zip
curl -OL https://github.com/google/protobuf/releases/download/v3.15.8/$PROTOC_ZIP
sudo unzip -o $PROTOC_ZIP -d /usr/local bin/protoc
sudo unzip -o $PROTOC_ZIP -d /usr/local 'include/*'
rm -f $PROTOC_ZIP
source: http://google.github.io/proto-lens/installing-protoc.html