yarn-error.log

Arguments: 
  /usr/local/Cellar/node/10.2.1/bin/node /usr/local/Cellar/yarn/1.5.1_1/libexec/bin/yarn.js add -S express

PATH: 
  /Users/Julian/.rvm/gems/ruby-2.3.1/bin:/Users/Julian/.rvm/gems/ruby-2.3.1@global/bin:/Users/Julian/.rvm/rubies/ruby-2.3.1/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/MacGPG2/bin:/opt/X11/bin:/Users/Julian/.rvm/bin:/Users/Julian/.rvm/bin:/Users/Julian/Library/Android/sdk:/Users/Julian/Library/Android/sdk:/Users/Julian/Library/Android/sdk:/Users/Julian/Library/Android/sdk/platform-tools

Yarn version: 
  1.5.1

Node version: 
  10.2.1

Platform: 
  darwin x64

npm manifest: 
  {
    "name": "ynab-ifttt",
    "version": "0.0.0",
    "description": "YNAB channel for IFTTT",
    "main": "index.js",
    "directories": {
      "doc": "docs"
    },
    "engines": {
      "node": "10.2.1"
    },
    "scripts": {
      "test": "echo \"Error: no test specified\" && exit 1",
      "open": "heroku open",
      "publish": "git push heroku master",
      "check": "heroku ps:scale web=1",
      "logs": "heroku logs --tail",
      "ssh": "heroku run bash"
    },
    "keywords": [
      "ynab",
      "ifttt"
    ],
    "author": "Julian Kingman",
    "license": "MIT",
    "dependencies": {
      "ifttt": "^0.1.2"
    }
  }

yarn manifest: 
  No manifest

Lockfile: 
  # THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
  # yarn lockfile v1
  
  
  ifttt@^0.1.2:
    version "0.1.2"
    resolved "https://registry.yarnpkg.com/ifttt/-/ifttt-0.1.2.tgz#17258e193e4ba3ce6c52d3927d8d66720a7185cf"
    dependencies:
      underscore "1.8.2"
  
  underscore@1.8.2:
    version "1.8.2"
    resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.8.2.tgz#64df2eb590899de950782f3735190ba42ebf311d"

Trace: 
  Error: Missing list of packages to add to your project.
      at new MessageError (/usr/local/Cellar/yarn/1.5.1_1/libexec/lib/cli.js:186:110)
      at Object.<anonymous> (/usr/local/Cellar/yarn/1.5.1_1/libexec/lib/cli.js:40587:13)
      at Generator.next (<anonymous>)
      at step (/usr/local/Cellar/yarn/1.5.1_1/libexec/lib/cli.js:98:30)
      at /usr/local/Cellar/yarn/1.5.1_1/libexec/lib/cli.js:116:14
      at new Promise (<anonymous>)
      at new F (/usr/local/Cellar/yarn/1.5.1_1/libexec/lib/cli.js:23451:28)
      at Object.<anonymous> (/usr/local/Cellar/yarn/1.5.1_1/libexec/lib/cli.js:95:12)
      at Object.run (/usr/local/Cellar/yarn/1.5.1_1/libexec/lib/cli.js:40599:19)
      at run (/usr/local/Cellar/yarn/1.5.1_1/libexec/lib/cli.js:89113:20)