title: Unable to install vagrant-hostupdater plugin during Vagrant up with VVV
body: <p>I'm new to Vagrant and my aim is to install Varying Vagrant Vagrants. I was following the steps mentioned in <a href="https://github.com/Varying-Vagrant-Vagrants/VVV#the-first-vagrant-up" rel="nofollow noreferrer">VVV's GitHub page</a> but I'm stuck up when installing <a href="https://github.com/cogitatio/vagrant-hostsupdater" rel="nofollow noreferrer">vagrant-hostupdater</a> mentioned in step 4.</p>
  
  <p>I'm getting the following error when I tried to install the vagrant-hostupdater plugin.</p>
  
  <pre><code>Microsoft Windows [Version 6.3.9600]
  (c) 2013 Microsoft Corporation. All rights reserved.
  
  C:\Users\Daniel&gt;vagrant plugin install vagrant-hostupdater
  Installing the 'vagrant-hostupdater' plugin. This can take a few minutes...
  Bundler, the underlying system Vagrant uses to install plugins,
  reported an error. The error is shown below. These errors are usually
  caused by misconfigured plugin installations or transient network
  issues. The error from Bundler is:
  
  Could not find gem 'vagrant-hostupdater (&gt;= 0) x86-mingw32' in any of the gem so
  urces listed in your Gemfile or available on this machine.
  
  Warning: this Gemfile contains multiple primary sources. Using `source` more tha
  n once without a block is a security risk, and may result in installing unexpect
  ed gems. To resolve this warning, use a block to indicate which gems should come
   from the secondary source. To upgrade this warning to an error, run `bundle con
  fig disable_multisource true`.
  </code></pre>
  
  <p>I'm running <strong>Windows 8.1 64-bit OS</strong> and I installed <strong>Virtual Box 5.0</strong> and <strong>Vagrant 1.8.1</strong></p>
  
  <p>Has anyone encountered the above issue?</p>
  
  <p>I found a <a href="https://stackoverflow.com/questions/33595579/could-not-find-gem-vagrant-triggersvagrant-0-x86-mingw32-in-any-of-the-g">question</a> similar to mine, in stackoverflow. Will the <a href="https://stackoverflow.com/a/33636318/5569979">answer</a> mentioned in the specified similar question help in fixing mine?</p>