title: Unable to find module with Gradle path ':volley'. Linking to library 'volley-unspecified' instead
body: <p>I have tried this tutorial <a href="http://www.technoburgh.com/android/android-studio-volley/" rel="nofollow">link</a>, it works for me in one app but when i am trying to apply it to the different app, it is giving warning  </p>
  
  <blockquote>
    <p>Warning:Unable to find module with Gradle path ':volley'. Linking to library 'volley-unspecified' instead.</p>
  </blockquote>