Error: Cannot install in Homebrew on ARM processor in Intel default prefix (/usr/local)

I use the latest Apple M1 chip processor. And I keep getting errors while application installation.

say.,

brew install openjdk@11

Error: Cannot install in Homebrew on ARM processor in Intel default prefix (/usr/local)!
Please create a new installation in /opt/homebrew using one of the
"Alternative Installs" from:
  https://docs.brew.sh/Installation
You can migrate your previously installed formula list with:
  brew bundle dump

Need help with exact steps to follow.

For what it's worth, before installing Homebrew you will need to install Rosetta2 emulator for the new ARM silicon (M1 chip). I just installed Rosetta2 via terminal using:

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

This will install rosetta2 with no extra button clicks.

After installing Rosetta2 above you can then use the Homebrew cmd and install Homebrew for ARM M1 chip: arch -x86_64 /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

Once Homebrew for M1 ARM is installed use this Homebrew command to install packages: arch -x86_64 brew install <package>

Homebrew needs to be installed in two places on Apple silicon: in /usr/local for rosetta-emulated (Intel) code, and /opt/homebrew for ARM64. These are somewhat hard-coded and the /opt/homebrew one MUST be used for ARM code, as it stands today, and is non-negotiable. However, it's easy enough to install and you can follow the general instructions on the official docs. You open a Rosetta shell first.

% arch -x86_64 zsh
% cd /usr/local && mkdir homebrew
% curl -L https://github.com/Homebrew/brew/tarball/master | tar xz --strip 1 -C homebrew

Later, to install tools under intel you can use the arch command per-command or open a zsh terminal as above.

arch -x86_64 /usr/local/homebrew/bin/brew install sometool

For the ARM architecture, you don't need to use arch but you do need to use the full path of the homebrew command.

/opt/homebrew/bin/brew install sometool

You could rename the brew commands to something like brew86 and brewARM to help keep them separate.

Just use:

arch -arm64 brew install package-name

replace 'package-name' with the package you want to install.

Did a temporary fix by enabling Open using Rosetta option in the terminal app from Utilities folder.

However, it would be great to know the actual solution for this question to use the native way.

This issue with new macbook pro M1 chip

Error: Cannot install in Homebrew on ARM processor in Intel default prefix (/usr/local)!

For Resolve follow below steps

> Step1 > > $ brew bundle dump > > Step2 > > $ /bin/bash -c "$(curl -fsSL > https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"; > > Step3 > Edit file below

> $ vi ~/.bashrc or vi ~/.zshrc > > Edit below line in above file

> export PATH=/opt/homebrew/bin:$PATH

Run this in the terminal it fixes the issue

eval "$(/opt/homebrew/bin/brew shellenv)"

First run this command:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

then it will ask you a question, hit return, then wait for the installation to be completed. After than run this command:

brew bundle dump

This also may occur if you are trying to run your command in IntelliJ Terminal. Just try to run in (Regular) Terminal.

Homebrew is now available for the new apple M1 chip at https://docs.brew.sh/Installation. The script installs in a new location, ‘/opt/homebrew’ instead of ‘/usr/local’ which requires that you implement a couple lines of script after the install, substituting your username. You can copy/paste from the comments in your install. Just don’t skip these steps.

==> Next steps:
- Add Homebrew to your PATH in /Users/[username]/.zprofile:
    echo 'eval "$(/opt/homebrew/bin/brew [username])"' >> /Users/[username]/.zprofile
    eval "$(/opt/homebrew/bin/brew [username])"

Note: This works for a clean install of Homebrew on a new machine. If you have already installed an old version of Homebrew and got it working, I believe you need to uninstall that first -or- you may find this a quicker work-around http://blog.wafrat.com/homebrew-on-mac-with-m1/. Not tested.

So I bought a new M1 and migrated to it. I took it back and migrated back. I was receiving this error. Found that I needed to run sudo rm -Rf /opt/homebrew after re-installing brew to get things flowing again. 16G Ram on the M1 didn't replace my workflow with Intel using 64G.