title: React Native keep failed to run
body: <p>i am new at React Native, and have problem with some errors. i followed official tutorial on React Native website, but it keeps failed with:</p>
  
  <pre><code>$ react-native run-android --info
  Starting JS server...
  Building and installing the app on the device (cd android &amp;&amp; ./gradlew     installDebug...
  
  FAILURE: Build failed with an exception.
  
  * What went wrong:
  A problem occurred configuring project ':app'.
  &gt; failed to find Build Tools revision 23.0.1
  
  * Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
  
  BUILD FAILED
  
  Total time: 3.441 secs
  Could not install the app on the device, read the error above for details.
  Make sure you have an Android emulator running or a device connected and have
  set up your Android development environment:
  https://facebook.github.io/react-native/docs/android-setup.html
  </code></pre>
  
  <p>i created project with "react-native init" and nothing special. i updated android sdk but still it is not working!</p>
  
  <pre><code>$ android update sdk -a -u -t 3
  </code></pre>
  
  <p>i have no idea what should i do now. i'm using latest osx now. it will be very appreciate it gimme some advice.</p>