webpacker not installing correctly

[AL6981]

When running make-it-so, this error is shown during install.

RAILS_ENV=development environment is not defined in config/webpacker.yml, falling back to production environment

While the install continues, it's currently required that after running bundle, the user must then run yarn install before any rake commands.

[dpickett]

this has been addressed in recent improvements to webpacker support