result

Fetch and install dependencie? [Yn] Y
* running mix deps.get
* running mix deps.compile
* running cd assets && npm install && node
node_modules/webpack/bin/webpack.js --mode development
 $ cd contasapp
Then configure your database in config/dev.exs and run:
 $ mix ecto.create
Start your Phoenix app with:
 $ mix phx.server
You can also run your app inside IEx (Interactive Elixir) as:
 $ iex -S phx.server