bash: line 10: mix: command not found when building Elixir app with edeliver

Another dummy error which could be fixed in a minute.

$ mix edeliver build release                  

BUILDING RELEASE OF AWESOMEBOT APP ON BUILD HOST

-----> Authorizing hosts
-----> Ensuring hosts are ready to accept git pushes
-----> Pushing new commits with git to: [email protected]


-----> Resetting remote hosts to 568e7c43e372ed947e45e3dfe2a641f5dc771bf4
-----> Cleaning generated files from last build
-----> Fetching / Updating dependencies
using mix to fetch and update deps
bash: line 10: mix: command not found

FAILED 127:

    [ -f ~/.profile ] && source ~/.profile
    set -e
    cd /home/bots/apps/builds
    if [ "mix" = "rebar" ]; then
      echo "using rebar to fetch and update deps"
      ./rebar  update-deps get-deps
    elif [ "mix" = "mix" ]; then
      echo "using mix to fetch and update deps"
      if [ ! -f ~/.mix/rebar ]; then
        APP="awesomebot" MIX_ENV="prod" mix local.rebar
      else
        echo "rebar for mix was built already"
      fi
      APP="awesomebot" MIX_ENV="prod" mix local.hex --force
      APP="awesomebot" MIX_ENV="prod" mix deps.get
    fi

Solution is simple -you need to install `mix`, so follow the instructions here: http://elixir-lang.org/install.html#unix-and-unix-like

Add Erlang Solutions repo: wget https://packages.erlang-solutions.com/erlang-solutions_1.0_all.deb && sudo dpkg -i erlang-solutions_1.0_all.deb
Run: sudo apt-get update
Install the Erlang/OTP platform and all of its applications: sudo apt-get install esl-erlang
Install Elixir: sudo apt-get install elixir