npm: module.js:457 throw err; Error: Cannot find module 'npmlog' on a mac using brew
<p>I made the mistake (?) of following <a href="https://docs.npmjs.com/getting-started/installing-node" rel="noreferrer">the instructions on the npm getting started page</a> and ran </p>

<pre><code>sudo npm install npm -g
</code></pre>

<p>Now, no matter what I do, any execution of npm results in this error, whether I run it as sudo or not.  Uninstalling and reinstalling node has not helped.  </p>

<pre><code>$ sudo npm

module.js:457
    throw err;
    ^

Error: Cannot find module 'npmlog'
    at Function.Module._resolveFilename (module.js:455:15)
    at Function.Module._load (module.js:403:25)
    at Module.require (module.js:483:17)
    at require (internal/module.js:20:19)
    at /usr/local/lib/node_modules/npm/bin/npm-cli.js:19:13
    at Object.&lt;anonymous&gt; (/usr/local/lib/node_modules/npm/bin/npm-cli.js:75:3)
    at Module._compile (module.js:556:32)
    at Object.Module._extensions..js (module.js:565:10)
    at Module.load (module.js:473:32)
    at tryModuleLoad (module.js:432:12)
</code></pre>

<p>I am on a mac and installed node using homebrew.</p>