When starting Rails server facing the error
uninitialized constant ActiveSupport::LoggerThreadSafeLevel::Logger (NameError) This issue started after executing the command “bundle update –bundler”
The following fix will resolve the issue.
- Open Gemfile
- Downgrade the gem concurrent-ruby version as 1.3.4
gem 'concurrent-ruby', '1.3.4'Update bundler by executing the command ‘bundle update’
Now you can start the rails application. Everything should be smooth now.
Happy coding 🙂