title: node package manager install error with Express
body: <p>I'm attempting to install express using the node package manager and am getting the below error.  This is on Windows 7 x64 running cmd as administrator.  Any assistance?</p>
  
  <pre><code>Microsoft Windows [Version 6.1.7601]
  Copyright (c) 2009 Microsoft Corporation.  All rights reserved.
  
  C:\&gt;npm install express -g
  npm http GET https://registry.npmjs.org/express
  npm http GET https://registry.npmjs.org/express
  npm http GET https://registry.npmjs.org/express
  npm ERR! Error: SELF_SIGNED_CERT_IN_CHAIN
  npm ERR!     at SecurePair.&lt;anonymous&gt; (tls.js:1283:32)
  npm ERR!     at SecurePair.EventEmitter.emit (events.js:92:17)
  npm ERR!     at SecurePair.maybeInitFinished (tls.js:896:10)
  npm ERR!     at CleartextStream.read [as _read] (tls.js:430:15)
  npm ERR!     at CleartextStream.Readable.read (_stream_readable.js:304:10)
  npm ERR!     at EncryptedStream.write [as _write] (tls.js:344:25)
  npm ERR!     at doWrite (_stream_writable.js:211:10)
  npm ERR!     at writeOrBuffer (_stream_writable.js:201:5)
  npm ERR!     at EncryptedStream.Writable.write (_stream_writable.js:172:11)
  npm ERR!     at write (_stream_readable.js:557:24)
  npm ERR! If you need help, you may report this log at:
  npm ERR!     &lt;http://github.com/isaacs/npm/issues&gt;
  npm ERR! or email it to:
  npm ERR!     &lt;npm-@googlegroups.com&gt;
  
  npm ERR! System Windows_NT 6.1.7601
  npm ERR! command "C:\\Program Files\\nodejs\\\\node.exe" "C:\\Program Files\\nod
  ejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "express" "-g"
  npm ERR! cwd C:\
  npm ERR! node -v v0.10.5
  npm ERR! npm -v 1.2.18
  npm ERR!
  npm ERR! Additional logging details can be found in:
  npm ERR!     C:\npm-debug.log
  npm ERR! not ok code 0
  </code></pre>
  
  <p>I can connect to <a href="http://registry.npmjs.org/express" rel="nofollow">http://registry.npmjs.org/express</a> in Chrome returning JSON</p>