Standard Setup of Toolchain for Mac OS
Install Prerequisites
ESP-IDF will use the version of Python installed by default on macOS.
install pip:
sudo easy_install pip
install CMake & Ninja build:
It is strongly recommended to also install ccache for faster builds. If you have HomeBrew, this can be done via
brew install ccache
orsudo port install ccache
on MacPorts.
Note
If an error like this is shown during any step:
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun
Then you will need to install the XCode command line tools to continue. You can install these by running xcode-select --install
.
Installing Python 3
Basing on macOS Catalina 10.15 release notes, use of Python 2.7 is not recommended and Python 2.7 will not be included by default in future versions of macOS. Check what Python you currently have:
python --version
If the output is like Python 2.7.17
, your default interpreter is Python 2.7. If so, also check if Python 3 isn’t already installed on your computer:
python3 --version
If above command returns an error, it means Python 3 is not installed.
Below is an overview of steps to install Python 3.
Next Steps
To carry on with development environment setup, proceed to Step 2. Get ESP-IDF.