functions-install-core-tools.md

author	ms.service	ms.topic	ms.date	ms.author
ggailey777	azure-functions	include	11/14/2023	glenga

Install the Azure Functions Core Tools

The recommended way to install Core Tools depends on the operating system of your local development computer.

Windows

The following steps use a Windows installer (MSI) to install Core Tools v4.x. For more information about other package-based installers, see the Core Tools readme.

Download and run the Core Tools installer, based on your version of Windows:

• v4.x - Windows 64-bit (Recommended. Visual Studio Code debugging requires 64-bit.)
• v4.x - Windows 32-bit

If you previously used Windows installer (MSI) to install Core Tools on Windows, you should uninstall the old version from Add Remove Programs before installing the latest version.

macOS

The following steps use Homebrew to install the Core Tools on macOS.

1. Install Homebrew, if it's not already installed.

2. Install the Core Tools package:

   brew tap azure/functions
   brew install azure-functions-core-tools@4
   # if upgrading on a machine that has 2.x or 3.x installed:
   brew link --overwrite azure-functions-core-tools@4

Linux

The following steps use APT to install Core Tools on your Ubuntu/Debian Linux distribution. For other Linux distributions, see the Core Tools readme.

1. Install the Microsoft package repository GPG key, to validate package integrity:

   curl https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > microsoft.gpg
   sudo mv microsoft.gpg /etc/apt/trusted.gpg.d/microsoft.gpg

2. Set up the APT source list before doing an APT update.

   Ubuntu

   sudo sh -c 'echo "deb [arch=amd64] https://packages.microsoft.com/repos/microsoft-ubuntu-$(lsb_release -cs)-prod $(lsb_release -cs) main" > /etc/apt/sources.list.d/dotnetdev.list'

   Debian

   sudo sh -c 'echo "deb [arch=amd64] https://packages.microsoft.com/debian/$(lsb_release -rs | cut -d'.' -f 1)/prod $(lsb_release -cs) main" > /etc/apt/sources.list.d/dotnetdev.list'

3. Check the /etc/apt/sources.list.d/dotnetdev.list file for one of the appropriate Linux version strings in the following table:

   Linux distribution	Version
   Debian 11	bullseye
   Debian 10	buster
   Debian 9	stretch
   Ubuntu 22.04	jammy
   Ubuntu 20.04	focal
   Ubuntu 19.04	disco
   Ubuntu 18.10	cosmic
   Ubuntu 18.04	bionic
   Ubuntu 17.04	zesty
   Ubuntu 16.04/Linux Mint 18	xenial

4. Start the APT source update:

   sudo apt-get update

5. Install the Core Tools package:

   sudo apt-get install azure-functions-core-tools-4

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