Error loading the 'sqlite3' Active Record adapter. when I deploy in Heroku

Question

I have a problem when I am deploying in Heroku:

/app/vendor/bundle/ruby/2.6.0/gems/bundler-1.17.3/lib/bundler/rubygems_integration.rb:408:in `block (2 levels) in         


        

Answer 1

I had a similar problem and changing the adapter only in production worked for me, so database.yml is like:

default: &default
  adapter: sqlite3
  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
  timeout: 5000

development:
  <<: *default
  database: db/development.sqlite3

test:
  <<: *default
  database: db/test.sqlite3

production:
  <<: *default
  adapter: postgresql
  database: db/production.sqlite3

Hope it works for somebody else.