[RUBY] When I changed to M1 mac, bundle install became impossible

The other day, when the M1 macbook pro arrived and I was building an environment with excitement saying "Now, this is a goodbye to the frustrating life of air!", A mysterious error appeared at the bundle install stage and it became more frustrating. It was.

As a result of various investigations while thinking "early new year ...", I was able to solve it, so I will share it as a memo.

About the error

• I couldn't open the error content immediately, so let me just give you an overview. If you remember, I will add it.

I followed the steps below until I got stuck with an error. -Clone rails project locally from github ・ Bundle install And the gem that caused the error was as far as I could see:

- ffi
- sassc

Solutions

In my environment, I solved it by the following procedure.

Finder> Applications> Terminal (right-click)> Get Info> Check "Open with Rosetta"

Summary

This was a solution I happened to find while doing other research. For the time being, I will post the support page of apple that seems to be related to this case below. If you need to install Rosetta on your Mac (https://support.apple.com/ja-jp/HT211861)