title: how to use a proxy connection with android studio
body: <p>I'm trying to run a "hello world" application in android studio. My connection is via proxy. When I try run the "hello world app", android studio show me the next error: </p>
  
  <blockquote>
    <p>Error running Prueba: Gradle project sync failed. Please fix your project and try again.</p>
  </blockquote>
  
  <p>If I configure in: "File/setting -> HTTP Proxy" and next put my proxy configuration, the error is the next: </p>
  
  <blockquote>
    <p>Error:Could not GET '<a href="http://jcenter.bintray.com/com/android/tools/build/gradle/0.12.2/gradle-0.12.2.pom" rel="noreferrer">http://jcenter.bintray.com/com/android/tools/build/gradle/0.12.2/gradle-0.12.2.pom</a>'. Received status code 407 from server: Proxy Authentication Required ( The ISA Server requires authorization to fulfill the request. Access to the Web Proxy filter is denied.  )
    <code>&lt;a href="toggle.offline.mode"&gt;Enable Gradle 'offline mode' and sync project&lt;/a&gt;</code></p>
  </blockquote>
  
  <p>How can I fix that error?</p>