Dependabot can't resolve your Ruby dependency files

[dependabot-preview]

Dependabot can't resolve your Ruby dependency files.

As a result, Dependabot couldn't update your dependencies.

The error Dependabot encountered was:

Bundler::VersionConflict with message: Bundler could not find compatible versions for gem "coffee-script":
  In Gemfile:
    coffee-rails (~> 4.2.2) was resolved to 4.2.2, which depends on
      coffee-script (>= 2.2.0)

Could not find gem 'coffee-script (>= 2.2.0)', which is required by gem 'coffee-rails (~> 4.2.2)', in any of the sources.

Bundler could not find compatible versions for gem "rails":
  In Gemfile:
    rails (>= 4.2.10, <= 5.2.2)

    blacklight (>= 6.1) was resolved to 6.16.0, which depends on
      rails (>= 4.2, < 6)

    rails_autolink was resolved to 1.1.6, which depends on
      rails (> 3.1)

    yaml_db was resolved to 0.6.0, which depends on
      rails (>= 3.0, < 5.2)

If you think the above is an error on Dependabot's side please don't hesitate to get in touch - we'll do whatever we can to fix it.

You can mention @dependabot in the comments below to contact the Dependabot team.