heroku-cli

I'm working with heroku and every time I try to push my app this message shows out: remote: Compressing source files... done. remote: Building source: remote: remote: -----> Ruby app detected remote: remote: ! remote: ! You must use Bundler 2 or greater with this lockfile. remote: ! remote: /tmp/d20181109-104-g861yi/bundler-1.15.2/gems/bundler-1.15.2/lib/bundler/lockfile_parser.rb:108:in `warn_for_outdated_bundler_version': You must use Bundler 2 or greater with this lockfile. (Bundler::LockfileError) remote: from /tmp/d20181109-104-g861yi/bundler-1.15.2/gems/bundler-1.15.2/lib/bundler

I have an existing Ruby on Rails app that already has data loaded into it. I used the default SQLite database setup, so that is where all my data is located, but I need all my data to go into my Postgres database on heroku. How do I do that? 10 Minutes Move from Local SQLite to a Heroku Postgres -- updates your local dev to postgres along the way -- This is assuming you have a development database in sqlite and you want to move the structure and data to heroku. You will be first changing your local environment to postgres, then moving it all up. Why change? You should always have your