title: "Missing Package Version" when installing Firebase functions
body: <p>I am looking to set up Google Firebase Functions from the Command line. I can successfully deploy, but when I try to install the functions. Here is the complete readout:</p>
  
  <pre><code>npm ERR! Can't install /Users/[username]/Documents/firebaseNode/functions: Missing package version
  
  npm ERR! A complete log of this run can be found in:
  npm ERR!     /Users/[username]/.npm/_logs/2019-09-21T16_11_22_371Z-debug.log```
  
  
  
  I have tried to locate the missing packages but cannot get any information. 
  
  ```17 verbose stack Error: Can't install /Users/[username]/Documents/nodeFolder/functions: Missing package version
  17 verbose stack     at hasMinimumFields (/usr/local/lib/node_modules/npm/lib/install/validate-args.js:28:15)
  17 verbose stack     at Array.&lt;anonymous&gt; (/usr/local/lib/node_modules/npm/node_modules/slide/lib/bind-actor.js:15:8)
  17 verbose stack     at LOOP (/usr/local/lib/node_modules/npm/node_modules/slide/lib/chain.js:15:14)
  17 verbose stack     at chain (/usr/local/lib/node_modules/npm/node_modules/slide/lib/chain.js:20:5)
  17 verbose stack     at /usr/local/lib/node_modules/npm/lib/install/validate-args.js:16:5
  17 verbose stack     at /usr/local/lib/node_modules/npm/node_modules/slide/lib/async-map.js:52:35
  17 verbose stack     at Array.forEach (&lt;anonymous&gt;)
  17 verbose stack     at /usr/local/lib/node_modules/npm/node_modules/slide/lib/async-map.js:52:11
  17 verbose stack     at Array.forEach (&lt;anonymous&gt;)
  17 verbose stack     at asyncMap (/usr/local/lib/node_modules/npm/node_modules/slide/lib/async-map.js:51:8)
  17 verbose stack     at module.exports (/usr/local/lib/node_modules/npm/lib/install/validate-args.js:15:3)
  17 verbose stack     at Array.&lt;anonymous&gt; (/usr/local/lib/node_modules/npm/node_modules/slide/lib/bind-actor.js:15:8)
  17 verbose stack     at LOOP (/usr/local/lib/node_modules/npm/node_modules/slide/lib/chain.js:15:14)
  17 verbose stack     at chain (/usr/local/lib/node_modules/npm/node_modules/slide/lib/chain.js:20:5)
  17 verbose stack     at Installer.loadAllDepsIntoIdealTree (/usr/local/lib/node_modules/npm/lib/install.js:477:3)
  17 verbose stack     at Array.&lt;anonymous&gt; (/usr/local/lib/node_modules/npm/node_modules/slide/lib/bind-actor.js:15:8)
  18 verbose cwd /Users/[username]/Documents/nodeFolder/functions
  19 verbose Darwin 17.7.0
  20 verbose argv "/usr/local/bin/node" "/usr/local/bin/npm" "install" "-g"
  21 verbose node v8.11.4
  22 verbose npm  v6.11.3```
  </code></pre>