[RUBY] [Rails 6] RuntimeError with $ rails s


Note that it will appear every time with the first Rails s after building the environment It is a prerequisite for building a rails environment using bundle.

When I do $ rails s, I get the following error ...

$ bundle exec rails s
=> Booting Puma
=> Rails application starting in development 
=> Run `rails server --help` for more startup options
Traceback (most recent call last)



Webpacker configuration file not found /Users/hoge_app/config/webpacker.yml. 
Please run rails webpacker:install 
Error: No such file or directory @ rb_sysopen - /Users/hoge_app/config/webpacker.yml (RuntimeError)


The error text says Please run rails webpacker: install, so just run it!

$ bundle exec rails webpacker:install

This is OK!

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