title: Service provider responded in error: 301 (Moved Permanently) - Twitter API 1.1
body: <p>I get this error when trying to connect to Twitter? Why?</p>
  
  <pre><code>02-18 16:40:33.270: W/System.err(7167): oauth.signpost.exception.OAuthCommunicationException: Communication with the service provider failed: Service provider responded in error: 301 (Moved Permanently)
  02-18 16:40:33.270: W/System.err(7167):     at oauth.signpost.AbstractOAuthProvider.retrieveToken(AbstractOAuthProvider.java:218)
  02-18 16:40:33.270: W/System.err(7167):     at oauth.signpost.AbstractOAuthProvider.retrieveRequestToken(AbstractOAuthProvider.java:74)
  02-18 16:40:33.270: W/System.err(7167):     at app.jp.cropnet.twitter.TwitterApp$2.run(TwitterApp.java:255)
  02-18 16:40:33.270: W/System.err(7167): Caused by: oauth.signpost.exception.OAuthCommunicationException: Service provider responded in error: 301 (Moved Permanently)
  02-18 16:40:33.270: W/System.err(7167):     at oauth.signpost.AbstractOAuthProvider.handleUnexpectedResponse(AbstractOAuthProvider.java:245)
  02-18 16:40:33.270: W/System.err(7167):     at oauth.signpost.AbstractOAuthProvider.retrieveToken(AbstractOAuthProvider.java:193)
  02-18 16:40:33.270: W/System.err(7167):     ... 2 more
  </code></pre>