I’m trying to deploy a Node.js app to App Platform (great product by the way) using the current version of yarn. I bootstrapped the repository using yarn set version berry.

The deployment installs yarn version 1.22.10 (which should be fine, since the yarnrc.yml points to the correct yarn binary). When it comes to installing the dependencies, the deployment uses a flag that is no longer supported: --network-timeout.

Below is the relevant section of the build log:

app | 01:15:04 => Building app
app | 01:15:04 
app | 01:15:04 ---> Node.js Buildpack
app | 01:15:04 ---> Installing toolbox
app | 01:15:04 ---> - jq
app | 01:15:05 ---> - yj
app | 01:15:05 ---> Getting Node version
app | 01:15:05 ---> Resolving Node version
app | 01:15:07 ---> Downloading and extracting Node v12.21.0
app | 01:15:21 ---> Parsing package.json
app | 01:15:23 ---> Installing yarn@1.22.10
app | 01:15:28 ---> No file to start server
app | 01:15:28 ---> either use 'docker run' to start container or add index.js or server.js
app | 01:15:28 Installing node_modules using yarn (from yarn.lock)
app | 01:15:29 Unknown Syntax Error: Unsupported option name ("--network-timeout").
app | 01:15:29 
app | 01:15:29 $ yarn install [--json] [--immutable] [--immutable-cache] [--check-cache] [--inline-builds] [--skip-builds]
app | 01:15:29 unable to invoke layer creator
app | 01:15:29 installing node_modules: exit status 1
app | 01:15:29 ERROR: failed to build: exit status 1
app | 01:15:29  ! Build failed (145)

Is it planned to support the current version of yarn on the App Platform?

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