install generator fails

[JacobShaeffer]

Describe the bug While running rails g rails_admin:install it fails with an error

Reproduction steps created a new rails project with ruby 3.2.1 and rails 7.0.4 add gem 'rails_admin', '~> 3.1', '>= 3.1.1' to gemfile bundle install rails g rails_admin:install

Expected behavior Installs normally and works

Additional context

• rails version: >= 7.0.4.3
• rails_admin version: >= 3.1.1
• rails_admin npm package version: 9.5.0

• full stack trace (if there's an exception) rails g rails_admin:install ? Where do you want to mount rails_admin? Press for [admin] > route mount RailsAdmin::Engine => '/admin', as: 'rails_admin' create config/initializers/rails_admin.rb

  • Using [importmap] for asset delivery method run yarn add rails_admin@3.1.1 from "." create app/javascript/rails_admin.js /Users/jacob/.rvm/gems/ruby-3.2.1/gems/rails_admin-3.1.1/lib/generators/rails_admin/importmap_formatter.rb:17:in format': undefined method[]' for nil:NilClass (NoMethodError)

    imports['@popperjs/core'].gsub!('lib/index.js', 'dist/esm/popper.js') ^^^^^^^^^^^^^^^^^^ from /Users/jacob/.rvm/gems/ruby-3.2.1/gems/rails_admin-3.1.1/lib/generators/rails_admin/install_generator.rb:88:in configure_for_importmap' from /Users/jacob/.rvm/gems/ruby-3.2.1/gems/rails_admin-3.1.1/lib/generators/rails_admin/install_generator.rb:33:ininstall' from /Users/jacob/.rvm/gems/ruby-3.2.1/gems/thor-1.2.1/lib/thor/command.rb:27:in run' from /Users/jacob/.rvm/gems/ruby-3.2.1/gems/thor-1.2.1/lib/thor/invocation.rb:127:ininvoke_command' from /Users/jacob/.rvm/gems/ruby-3.2.1/gems/thor-1.2.1/lib/thor/invocation.rb:134:in block in invoke_all' from /Users/jacob/.rvm/gems/ruby-3.2.1/gems/thor-1.2.1/lib/thor/invocation.rb:134:ineach' from /Users/jacob/.rvm/gems/ruby-3.2.1/gems/thor-1.2.1/lib/thor/invocation.rb:134:in map' from /Users/jacob/.rvm/gems/ruby-3.2.1/gems/thor-1.2.1/lib/thor/invocation.rb:134:ininvoke_all' from /Users/jacob/.rvm/gems/ruby-3.2.1/gems/thor-1.2.1/lib/thor/group.rb:232:in dispatch' from /Users/jacob/.rvm/gems/ruby-3.2.1/gems/thor-1.2.1/lib/thor/base.rb:485:instart' from /Users/jacob/.rvm/gems/ruby-3.2.1/gems/railties-7.0.4.3/lib/rails/generators.rb:263:in invoke' from /Users/jacob/.rvm/gems/ruby-3.2.1/gems/railties-7.0.4.3/lib/rails/commands/generate/generate_command.rb:26:inperform' from /Users/jacob/.rvm/gems/ruby-3.2.1/gems/thor-1.2.1/lib/thor/command.rb:27:in run' from /Users/jacob/.rvm/gems/ruby-3.2.1/gems/thor-1.2.1/lib/thor/invocation.rb:127:ininvoke_command' from /Users/jacob/.rvm/gems/ruby-3.2.1/gems/thor-1.2.1/lib/thor.rb:392:in dispatch' from /Users/jacob/.rvm/gems/ruby-3.2.1/gems/railties-7.0.4.3/lib/rails/command/base.rb:87:inperform' from /Users/jacob/.rvm/gems/ruby-3.2.1/gems/railties-7.0.4.3/lib/rails/command.rb:48:in invoke' from /Users/jacob/.rvm/gems/ruby-3.2.1/gems/railties-7.0.4.3/lib/rails/commands.rb:18:in

    ' from <internal:/Users/jacob/.rvm/rubies/ruby-3.2.1/lib/ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:37:in require' from <internal:/Users/jacob/.rvm/rubies/ruby-3.2.1/lib/ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:37:inrequire' from /Users/jacob/.rvm/gems/ruby-3.2.1/gems/bootsnap-1.16.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in require' from bin/rails:4:in

    '

Add any other context about the problem here.

[mshibuya]

Dup of #3609, and fixed in the latest release 3.1.2.

[JacobShaeffer]

Yep, that was it. Thank you!

[katakeynii]

Hi ! I'm currently using 3.1.2 and have the same error when when trying to install with : rails g rails_admin:install