Fails on startup
The cause is the gem
gem 'concurrent-ruby', '1.3.5'Add to the end of Gemfile and pin it for now
gem 'concurrent-ruby', '1.3.4'After adding, install
bundle install
# Fetching concurrent-ruby 1.3.4 (was 1.3.5)
# Installing concurrent-ruby 1.3.4 (was 1.3.5)Error log below
# With gem 'concurrent-ruby', '1.3.5' you get the error below, so pinning to '1.3.4'
#
# bundler: failed to load command: puma (/app-root/vendor/bundle/ruby/3.2.0/bin/puma)
# /app-root/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.8.7/lib/active_support/logger_thread_safe_level.rb:12:in `<module:LoggerThreadSafeLevel>': uninitialized constant ActiveSupport::LoggerThreadSafeLevel::Logger (NameError)
#
# Logger::Severity.constants.each do |severity|
# ^^^^^^^^^^