Search code examples
ruby-on-railsruby-on-rails-5bundlerruby-on-rails-6

Gem incompatibilities reported by bundler don't make logical sense

I'm trying to update a rails app from version 5.2 to 6. I'm getting bizarre error messages from bundler.

When I change the rails version in my gemfile to 6 and then run bundle update I get a series of messages like the following:

Bundler could not find compatible versions for gem "activerecord":
  In Gemfile:
    rails (= 6.0) was resolved to 6.0.0, which depends on
      activerecord (= 6.0.0)

    seed_dump was resolved to 3.3.1, which depends on
      activerecord (>= 4)

Since seed_dump depends on any version of activerecord greater than 4, why doesn't bundle consider version 6 compatible?

What can I do to get bundle update to run?

Solution

  • Following the advice in one of the comments, above, I fixed this problem by removing the line BUNDLED_WITH from Gemfile.lock. After removing the line, running bundle update ran without issue.