title: Babel error: "Couldn't find preset 'latest' relative to directory" when preset was installed globally
body: <p>I installed Babel globally like this:</p>
  
  <pre><code>npm install -g babel-cli
  npm install -g babel-preset-latest
  </code></pre>
  
  <p>I know it's not recommended to do it globally, but I prefer this way to keep my directory clean (no node_modules/ and no package.json)</p>
  
  <p>Then I have a mainES6.js file written in ES6 that I want in ES5, so I do this:</p>
  
  <pre><code>babel mainES6.js -o mainES5.js --presets latest
  </code></pre>
  
  <p>And I get this message: <code>Error: Couldn't find preset "latest" relative to directory "/path/to/my/file/"</code></p>
  
  <p>How to make that work?</p>