** (Mix) Dependency specified in the wrong format:

{:poolboy, nil, [optional: false, hex: :poolboy]}

Expected:

{app, opts} | {app, requirement} | {app, requirement, opts}

Where:

app :: atom
requirement :: String.t | Regex.t
opts :: Keyword.t

I tried to run iex, then fail according to this code in lib/tasks.ex. I have no idea where to get reaxt on npm.

installed_version = Poison.decode!(File.read!("web/node_modules/reaxt/package.json"))["version"]
current_version = Poison.decode!(File.read!("#{:code.priv_dir(:reaxt)}/commonjs_reaxt/package.json"))["version"]
      if  installed_version !== current_version, do:
        Mix.Task.run("npm.install", args)

What should I do to get this pass?

Not sure exactly what I'm supposed to be seeing at /webpack but I get the 'oops'. Is there something missing from the readme?