title: Android error launching project on emulator
body: <p>Im trying to run a my project on the GenyMotion emulator and for some reason i keep getting this error, does anyone know why? It was working fine before.</p>
  
  <pre><code>Error:A problem occurred configuring root project 'Desktop2'.
  &gt; Could not resolve all dependencies for configuration ':classpath'.
     &gt; Could not resolve com.android.tools.build:gradle:0.12.+.
       Required by:
           :Desktop2:unspecified
        &gt; Failed to list versions for com.android.tools.build:gradle.
           &gt; Could not list versions using M2 pattern 'http://jcenter.bintray.com/[organisation]/[module]/[revision]/[artifact]-[revision](-[classifier]).[ext]'.
              &gt; Could not GET 'http://jcenter.bintray.com/com/android/tools/build/gradle/'.
                 &gt; jcenter.bintray.com
  </code></pre>