Setting up your Ethereum Eth Development Environment on a Mac OS X

Firstly, to install Ethereum Eth download the latest stable binary of cpp-ethereum, and install on your chosen operating system.
I’m running on Mac so I’ll install via Homebrew

brew update
brew upgrade
brew tap ethereum/ethereum
brew install cpp-ethereum

In the installation of cpp-ethereum, I ran into a compilation error

Built target llvm

make: *** Error 2

If reporting this issue please do so at (not Homebrew/brew or Homebrew/core):

These open issues may also help:

Error during install of  cpp-ethereum ( Built target llvm make: *** Error 2)

In order to get cpp-ethereum to run correctly on my Mac, I had to build from the head. The last line of the install snags the latest branch of cpp-ethereum

brew update
brew upgrade
brew tap ethereum/ethereum
brew reinstall llvm
At this point, close the terminal, and relaunch it.
brew install leveldb libmicrohttpd cryptopp
brew install cpp-ethereum --devel --successful --verbose

Now I’m able to launch with

eth -j --rpccorsdomain '*'

In some of our other tutorials, you will learn how to run eth with rpc and ipc. You’ll also learn how to create a custom Genesis Block to enable you to mine for ether quickly on your own testnet.

Joel Garcia
Joel Garcia

Joel Garcia has been building AllCode since 2015. He’s an innovative, hands-on executive with a proven record of designing, developing, and operating Software-as-a-Service (SaaS), mobile, and desktop solutions. Joel has expertise in HealthTech, VoIP, and cloud-based solutions. Joel has experience scaling multiple start-ups for successful exits to IMS Health and Golden Gate Capital, as well as working at mature, industry-leading software companies. He’s held executive engineering positions in San Francisco at TidalWave, LittleCast, Self Health Network, LiveVox acquired by Golden Gate Capital, and Med-Vantage acquired by IMS Health.