Arguments: 
  /usr/local/bin/node /usr/local/Cellar/yarn/1.5.1_1/libexec/bin/yarn.js rails-server

PATH: 
  /usr/local/opt/qt@5.5/bin:/Users/sergio/google-cloud-sdk/bin:/Users/sergio/.rvm/gems/ruby-2.4.1/bin:/Users/sergio/.rvm/gems/ruby-2.4.1@global/bin:/Users/sergio/.rvm/rubies/ruby-2.4.1/bin:/Users/sergio/.rvm/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Users/sergio/bin:/Users/sergio/.cargo/bin:/Users/sergio/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/src/rust/src

Yarn version: 
  1.5.1

Node version: 
  10.0.0

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/sergio/Github/wetransfer"
      at new MessageError (/usr/local/Cellar/yarn/1.5.1_1/libexec/lib/cli.js:186:110)
      at /usr/local/Cellar/yarn/1.5.1_1/libexec/lib/cli.js:40048:15
      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:109:13