By Neil Smith
I’m trying to get a legacy Ruby on Rails app running on the App Platform - it’s currently using ruby 2.3.1, which I realise is fairly old now - upgrading is on the cards, but ideally I’d like to get it running with this version first.
I deploy, and see this message:
The Ruby version you are trying to install does not exist on this stack.
You are trying to install ruby-2.3.1 on heroku-18.
Ruby ruby-2.3.1 is present on the following stacks:
- cedar-14
- heroku-16
Is it possible to specify the stack somehow? I can’t seem to find a configuration option for it.
Many thanks for any help!
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Hi there,
I’ve just checked the official documentation and it looks like the Heroku-16 stack reached end-of-life on May 1st, 2021:
https://devcenter.heroku.com/articles/heroku-16-stack
What I could suggest is either:
- Try upgrading your Ruby version to a newer one so that it would be able to build on Heroku-18
- Create a Dockerfile so that your App builds from the Dockerfile rather than the Heroku build-packs:
https://docs.digitalocean.com/products/app-platform/languages-frameworks/docker/
Let me know how it goes!
Best,
Bobby
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