yarn-error.log

Arguments: 
  /usr/local/bin/node /usr/local/Cellar/yarn/1.5.1/libexec/bin/yarn.js test

PATH: 
  /usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Users/saravieira/Library/Android/sdk/tools:/Users/saravieira/Library/Android/sdk/platform-tools:/Users/saravieira/Library/Python/2.7/bin:/Users/saravieira/terraform

Yarn version: 
  1.5.1

Node version: 
  8.9.4

Platform: 
  darwin x64

npm manifest: 
  No manifest

yarn manifest: 
  No manifest

Lockfile: 
  No lockfile

Trace: 
  Error: Couldn't find a package.json file in "/Users/saravieira/Projects/testing-react-workshop"
      at new MessageError (/usr/local/Cellar/yarn/1.5.1/libexec/lib/cli.js:186:110)
      at /usr/local/Cellar/yarn/1.5.1/libexec/lib/cli.js:40048:15
      at Generator.next (<anonymous>)
      at step (/usr/local/Cellar/yarn/1.5.1/libexec/lib/cli.js:98:30)
      at /usr/local/Cellar/yarn/1.5.1/libexec/lib/cli.js:109:13
      at <anonymous>