safe-buffer not declared in dependencies throws error

[mrossesf]

When using Yarn v2 (berry) to run yarn test in the community.optimism.io/tutorial, I got the error shown below. I tried to manually add the safe-buffer dependency to the ../node_modules/ganache-core/package.json file, but still got the exact same error.

Error: ganache-core tried to access safe-buffer, but it isn't declared in its dependencies; this makes the require call ambiguous and unsound.

Required package: safe-buffer (via "safe-buffer")
Required by: ganache-core@npm:2.13.2 (via /Users/martinrosse/optimism-tutorial/.yarn/unplugged/ganache-core-npm-2.13.2-bd779722b4/node_modules/ganache-core/build/)

[mrossesf]

The issue I encountered was solved by switching to Yarn v1.x. I'm not aware of an issue that is specific to ganache-core, so I am closing this.