'Please use yarn to install dependencies.' when using yarn

[memark]

Trying to install dependencies with yarn, which is installed globally via homebrew.
Yarn works perfectly for other projects.

• VSCode Version: latest master
• OS Version: Mac OS 10.15.3

Steps to Reproduce:

1. clone repo
2. run yarn

➜ node -v
v10.19.0

➜ yarn -v
1.22.4

➜ yarn
yarn install v1.22.4
$ node build/npm/preinstall.js
*** Please use yarn to install dependencies.

error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.

[vscodebot]

(Experimental duplicate detection)
Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• yarn start / stop bug (#90041)
• yarn install node-gyp errors only with vscode source yarn.lock files (#91590)

[aeschli]

What's the version of npm?

Can you edit

vscode/build/npm/preinstall.js

Line 27 in 88b1952

console.error('\033[1;31m*** Please use yarn to install dependencies.\033[0;0m');

and add a console.log(process.env['npm_execpath'])?

[memark]

➜ npm -v
6.13.4

Added the log statement, it gives
/Users/memark/.yarn/releases/yarn-1.22.4.js

[memark]

Thanks for a quick fix!