CODEWITHSUNDEEP
homebrewapple-m1
Dashiell Rose Bark-Huss
Dashiell Rose Bark-Huss

Reputation: 2965

Error: Cannot install under Rosetta 2 in ARM default prefix (/opt/homebrew)

I tried to upgrade with Brew

$ brew upgrade stripe/stripe-cli/stripe

I got:

Error: Cannot install under Rosetta 2 in ARM default prefix (/opt/homebrew)!
To rerun under ARM use:
    arch -arm64 brew install ...
To install under x86_64, install Homebrew into /usr/local.

AS suggested, I tried

$ arch -arm64 brew install

But got:

Error: Invalid usage: This command requires at least 1 formula or cask argument.

I tried installing Rosetta 2 according to this tutorial

$ /usr/sbin/softwareupdate --install-rosetta --agree-to-license

But I got:

Installing Rosetta 2 on this system is not supported.

Upvotes: 15

Views: 50091

Answers (5)

heyfrank
heyfrank

Reputation: 5647

In my case, I switched Terminal to run with Rosetta 2 in the early days of Apple Silicon and forgot about it.

Switching it back got homebrew working again.

If this is the case for you, do this:

  • Go to Finder → Applications → Utilities.
  • CMD+I on Terminal
  • Deselect "Open with Rosetta"

Upvotes: 9

Karl Molina
Karl Molina

Reputation: 143

This was happening to me in tmux since uname -a was giving x86_64, it should return arm64 on m1 macs.

I added this to my tmux.conf to make it always start in arm mode.

set -g default-command "arch -arch arm64 /bin/zsh"

Found this here: Running tmux on an M1 Mac in arm64 mode

Upvotes: 1

Suvorov_IT
Suvorov_IT

Reputation: 21

Well, all other answers seemed like a workaround for me, I would recommend to do this

cd /opt
sudo mkdir homebrew
sudo chown $(whoami):admin homebrew
curl -L https://github.com/Homebrew/brew/tarball/master | tar xz --strip 1 -C homebrew

Then just reload terminal and your brew install xxx should work just fine.

Upvotes: 2

binaryanomaly
binaryanomaly

Reputation: 4922

Seems homebrew has to be used like this from now on:

arch -arm64 brew upgrade

Upvotes: 32

Dashiell Rose Bark-Huss
Dashiell Rose Bark-Huss

Reputation: 2965

I added the original argument to arch -arm64 brew upgrade and it worked

$ arch -arm64 brew upgrade stripe/stripe-cli/stripe

Upvotes: 9

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