uninitialized constant Tailwindcss (NameError) when launching puma #319
Comments
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my puma.rb Gemfile |
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"bundle env" returns EnvironmentBundler Build MetadataBundler settingsGemfileGemfilesource "https://rubygems.org"
git_source(:github) { |repo| "https://github.com/#{repo}.git" }
ruby "3.1.2"
# Bundle edge Rails instead: gem "rails", github: "rails/rails", branch: "main"
gem "rails", "~> 7.0.8"
# The original asset pipeline for Rails [https://github.com/rails/sprockets-rails]
# Use postgresql as the database for Active Record
gem "pg", "~> 1.1"
# Use the Puma web server [https://github.com/puma/puma]
gem "puma"
# Use JavaScript with ESM import maps [https://github.com/rails/importmap-rails]
gem "importmap-rails"
# Hotwire's SPA-like page accelerator [https://turbo.hotwired.dev]
gem "turbo-rails"
# Hotwire's modest JavaScript framework [https://stimulus.hotwired.dev]
gem "stimulus-rails"
# Build JSON APIs with ease [https://github.com/rails/jbuilder]
gem "jbuilder"
# Use Redis adapter to run Action Cable in production
gem "redis", "~> 4.0"
# Use Kredis to get higher-level data types in Redis [https://github.com/rails/kredis]
# gem "kredis"
# Use Active Model has_secure_password [https://guides.rubyonrails.org/active_model_basics.html#securepassword]
# gem "bcrypt", "~> 3.1.7"
# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem "tzinfo-data", platforms: %i[ mingw mswin x64_mingw jruby ]
# Reduces boot times through caching; required in config/boot.rb
gem "bootsnap", require: false
# Use Sass to process CSS
# gem "sassc-rails"
# Use Active Storage variants [https://guides.rubyonrails.org/active_storage_overview.html#transforming-images]
# gem "image_processing", "~> 1.2"
gem "devise"
gem "autoprefixer-rails"
gem "font-awesome-sass", "~> 6.1"
gem "simple_form", github: "heartcombo/simple_form"
gem "sassc-rails"
group :development, :test do
gem "dotenv-rails"
# See https://guides.rubyonrails.org/debugging_rails_applications.html#debugging-with-the-debug-gem
gem "debug", platforms: %i[ mri mingw x64_mingw ]
end
group :development do
# Use console on exceptions pages [https://github.com/rails/web-console]
gem "web-console"
# Add speed badges [https://github.com/MiniProfiler/rack-mini-profiler]
# gem "rack-mini-profiler"
# Speed up commands on slow machines / big apps [https://github.com/rails/spring]
# gem "spring"
end
group :test do
# Use system testing [https://guides.rubyonrails.org/testing.html#system-testing]
gem "capybara"
gem "selenium-webdriver"
end
gem "tailwindcss-rails"
gem "pry-byebug", "~> 3.10"
gem "rqrcode", "~> 2.2"
gem "sprockets-rails", "~> 3.4"Gemfile.lock |
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sassc-rails cannot be used with tailwindcss-rails. Maybe that's why it happens |
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Thanks, that solved the problem! |
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The problem is back somehow, maybe it was not solved after all. Not going to reopen it just yet because I want to make sure I didn't miss anything. bundle exec puma Gemfile Gemfile.lock bundle env EnvironmentBundler Build MetadataBundler settingsGemfileGemfilesource "https://rubygems.org"
git_source(:github) { |repo| "https://github.com/#{repo}.git" }
ruby "3.1.2"
# Bundle edge Rails instead: gem "rails", github: "rails/rails", branch: "main"
gem "rails", "~> 7.0.8"
# The original asset pipeline for Rails [https://github.com/rails/sprockets-rails]
# Use postgresql as the database for Active Record
gem "pg", "~> 1.1"
gem "tailwindcss-rails", "~> 2.3"
# Use the Puma web server [https://github.com/puma/puma]
gem "puma"
# Use JavaScript with ESM import maps [https://github.com/rails/importmap-rails]
gem "importmap-rails"
# Hotwire's SPA-like page accelerator [https://turbo.hotwired.dev]
gem "turbo-rails"
# Hotwire's modest JavaScript framework [https://stimulus.hotwired.dev]
gem "stimulus-rails"
# Build JSON APIs with ease [https://github.com/rails/jbuilder]
gem "jbuilder"
# Use Redis adapter to run Action Cable in production
gem "redis", "~> 4.0"
# Use Kredis to get higher-level data types in Redis [https://github.com/rails/kredis]
# gem "kredis"
# Use Active Model has_secure_password [https://guides.rubyonrails.org/active_model_basics.html#securepassword]
# gem "bcrypt", "~> 3.1.7"
# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem "tzinfo-data", platforms: %i[ mingw mswin x64_mingw jruby ]
# Reduces boot times through caching; required in config/boot.rb
gem "bootsnap", require: false
# Use Sass to process CSS
# gem "sassc-rails"
# Use Active Storage variants [https://guides.rubyonrails.org/active_storage_overview.html#transforming-images]
# gem "image_processing", "~> 1.2"
gem "devise"
gem "autoprefixer-rails"
gem "simple_form", github: "heartcombo/simple_form"
group :development, :test do
gem "dotenv-rails"
# See https://guides.rubyonrails.org/debugging_rails_applications.html#debugging-with-the-debug-gem
gem "debug", platforms: %i[ mri mingw x64_mingw ]
end
group :development do
# Use console on exceptions pages [https://github.com/rails/web-console]
gem "web-console"
# Add speed badges [https://github.com/MiniProfiler/rack-mini-profiler]
# gem "rack-mini-profiler"
# Speed up commands on slow machines / big apps [https://github.com/rails/spring]
# gem "spring"
end
group :test do
# Use system testing [https://guides.rubyonrails.org/testing.html#system-testing]
gem "capybara"
gem "selenium-webdriver"
end
gem "pry-byebug", "~> 3.10"
gem "rqrcode", "~> 2.2"
gem "sprockets-rails", "~> 3.4"
gem "pundit", "~> 2.3"Gemfile.lock |
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Try to start Rails with |
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The server then launches, but for some reasons there are large parts of the tailwind classes missing. For example |
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Are you sure that this problem doesn't occur if you start |
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yes, I have that running in a separate terminal window |
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I also cannot find a pattern to the missing classes. I have tried deleting the assets and rebuilding them but it always ends up with some missing stuff. |
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/app/assets/builds/tailwind.css contains "blue" exactly once, which seems very strange
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Maybe there's some problem with relative paths when running it this way. It's just a theory that I have not corroborated. |
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Should I open a separate issue for it? |
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I think reopening this is enough. But before that, could you try running Tailwind in a main Rails app without additional gems to the default ones in the Gemfile? To be sure it's not a conflict |
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At least for the example above I found the problem. The just in time compiling that tailwind uses scans view files for classes and then adds those to the builds css file. I was using some rails specific logic which isn't covered by that. aka stuff like Thanks for your help @brunoprietog! |
When launching my development server locally with "bundle exec puma"
It fails with the following error.
(I assume it's a configuration error on my side, but I followed the installation instructions directly)
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