title: Why does the Google maven repository exist and when should I use it?
body: <p>So I found myself scratching my head as I was trying to update my build.gradle dependencies. The com.android.support:appcompat library version 26.0.2 didnt resolve. After a bit of searching I learned that I had to add Google's maven repository to the list of repositories in my project gradle file. So now both Google's maven repository and jcenter() is listed. </p>
  
  <p>So why is Google now hosting their own maven repository and is there any reason not to use it? Its odd that libraries are hosted both places with different versions.</p>