Ja Serializer task not found by Mix
<p>I'm playing with Phoenix but for some reason I'm not able to use JA_Serializer.</p>

<p>I have the dependency on my mix.exs</p>

<pre><code>defp deps do
  (...)
  {:ja_serializer, "~&gt; 0.11.1"},
  (...)
end
</code></pre>

<p>I followed the documentation:</p>

<p>My <code>config.exs</code></p>

<pre><code>config :phoenix, :format_encoders,
  "json-api": Poison

config :mime, :types, %{
  "application/vnd.api+json" =&gt; ["json-api"]
}
</code></pre>

<p>And re-compile mime:</p>

<pre><code>mix deps.clean mime --build
mix deps.get
</code></pre>

<p>But it keeps failing:</p>

<pre><code>$ mix ja_serializer.gen.phoenix_api Market markets name:string phone:string
** (Mix) The task "ja_serializer.gen.phoenix_api" could not be found
</code></pre>