title: Could not resolve com.google.android.gms:play-services-base
body: <pre><code>Could not GET 'http://jcenter.bintray.com/com/google/android/gms/play-services-base/maven-metadata.xml'. Received status code 403 from server: Forbidden
  </code></pre>
  
  <p>I could connect to the host.</p>
  
  <pre><code>gongzelong:android gongzelong$ nc -X 5 -x 127.0.0.1:1086 jcenter.bintray.com 443 -v
  Connection to jcenter.bintray.com port 443 [tcp/https] succeeded!
  ^C
  gongzelong:android gongzelong$ nc -X 5 -x 127.0.0.1:1086 repo1.maven.org 443 -v
  Connection to repo1.maven.org port 443 [tcp/https] succeeded!
  ^C
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/Lbzti.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Lbzti.png" alt="enter image description here"></a></p>