Deploying to heroku is broken after upgrading to yarn 4

[jagthedrummer]

Pushing to heroku fails with this error:

remote: -----> Installing dependencies        
remote:        Installing node modules (yarn.lock)        
remote:        Unknown Syntax Error: Invalid option name ("--production=false").        
remote:                
remote:        $ yarn install [--json] [--immutable] [--immutable-cache] [--refresh-lockfile] [--check-cache] [--check-resolutions] [--inline-builds] [--mode #0]

[jagthedrummer]

Related issues:

heroku/buildpacks-nodejs#246

yarnpkg/berry#4608

[jagthedrummer]

A complicating factor here is that Heroku recommends putting the heroku/nodejs buildpack before heroku/ruby but that's causing problems because our build step in package.json assumes that it can use the bundle command (for some reason that I don't fully understand at the moment) which isn't installed yet if we follow Heroku's recommendation.

[deepakmahakale]

A complicating factor here is that Heroku recommends putting the heroku/nodejs buildpack before heroku/ruby but that's causing problems because our build step in package.json assumes that it can use the bundle command (for some reason that I don't fully understand at the moment) which isn't installed yet if we follow Heroku's recommendation.

I can confirm this works as on 25th Jul 2024

[jagthedrummer]

Thanks for the confirmation @deepakmahakale. 🤘