title: "Move it away" NPM Error when deploying to Azure
body: <p>I keep getting the following error when deploying my Node.js website to Azure. </p>
  
  <p>npm ERR! EEXIST, open 'D:\local\AppData\npm-cache\428e5db9-pm-cache-acorn-1-1-0-package-tgz.lock'
  File exists: D:\local\AppData\npm-cache\428e5db9-pm-cache-acorn-1-1-0-package-tgz.lock
  Move it away, and try again.</p>
  
  <p>It is an existing site that has been running on Azure for months.</p>
  
  <p>Any help would be appreciated.</p>