Background

I have a small elixir project and I am trying to use GithubWorkflow to have a nice pipeline and automate some actions.

Problem

However I can’t even get it started as I get the following error:

 Setup elixir
1s
    AUCTION_HOUSE_TOKEN: ***
Run actions/setup-elixir@v1
  with:
    elixir-version: 1.10-otp-22
    otp-version: 22.1
    install-hex: true
    install-rebar: true
  env:
    COOKIE: ***
    TOKEN: ***
##[error]Cannot read property 'includes' of undefined

Code

I think my workflow might be incorrect, could someone help figure out what’s wrong?

name: build
on:

push:

branches: [ master ]

pull_request:

branches: [ master ]
env:

COOKIE: ${{ secrets.COOKIE }}

TOKEN: ${{ secrets.TOKEN }}
jobs:
build:

runs-on: ubuntu-latest

steps:

- uses: actions/checkout@v2

- name: Setup elixir

uses: actions/setup-elixir@v1

with:

elixir-version: '1.10-otp-22' # Define the elixir version [required]

otp-version: '22.1' # Define the OTP version [required]

- name: Install Dependencies

run: mix deps.get

- name: Run Tests

run: mix test

- name: Run credo code analyser

run: mix credo --strict

- name: Run typechecks

run: mix dialyzer

- name: Build executable

run: mix escript.build

env:

MIX_ENV: prod