Rails 7 API only app deploy fails due to ruby version

1

I’m getting this error when trying to deploy a Rails 7 API only with React frontend monorepo.

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I’ve specified the ruby version as mentioned in other posts like below.
In my .ruby-version I have 3.2.2
In my Gemfile I specify the ruby version with ruby File.read(‘.ruby-version’).strip

I have previously successfully deployed a rails app (not API only) that used ruby version 3 so I’m not sure what I’m missing with this one.

Thanks

2

Hi,

Are the Gemfile & .ruby-version in the root of your repo? If they’re not in the root, (e.g. in a monorepo setup), they won’t be detected. That’s where the Root Directory setting can help.

Alan

3

Thanks Alan!
Yes, on this project I had the rails app under a backend/ directory instead of the root directory. Doing as you said and setting “rootDir: backend” fixed the error.

Thanks again

4

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