Problem with elixir 1.5.1

[sbrocos]

─➤ bin/setup

Ensuring Hex is installed...

** (SyntaxError) mix.exs:6: unexpected token: ":" (column 12, codepoint U+003A) (elixir) lib/code.ex:334: Code.load_file/2 (mix) lib/mix/cli.ex:26: Mix.CLI.proceed/1 (elixir) lib/code.ex:376: Code.require_file/2 ** (SyntaxError) mix.exs:6: unexpected token: ":" (column 12, codepoint U+003A) (elixir) lib/code.ex:334: Code.load_file/2 (mix) lib/mix/cli.ex:26: Mix.CLI.proceed/1 (elixir) lib/code.ex:376: Code.require_file/2 Done!