title: Dx unsupported class file version 52.0 ...while parsing com/example/test1/BuildConfig.class
body: <p>I'm getting the following errors when attempting to build a project using JDK 1.8 and eclipse neon: </p>
  
  <pre><code>[2016-07-03 02:40:59 - Test1] Dx 
  PARSE ERROR:
  
  [2016-07-03 02:40:59 - Test1] Dx unsupported class file version 52.0
  ...while parsing com/example/test1/BuildConfig.class
  
  [2016-07-03 02:40:59 - Test1] Dx 
  PARSE ERROR:
  [2016-07-03 02:40:59 - Test1] Dx unsupported class file version 52.0
  ...while parsing com/example/test1/MainActivity.class
  
  [2016-07-03 02:40:59 - Test1] Dx 
  PARSE ERROR:
  [2016-07-03 02:40:59 - Test1] Dx unsupported class file version 52.0
  ...while parsing com/example/test1/R.class
  
  [2016-07-03 02:40:59 - Test1] Dx 
  PARSE ERROR:
  [2016-07-03 02:40:59 - Test1] Dx unsupported class file version 52.0
  ...while parsing com/example/test1/R$attr.class
  
  [2016-07-03 02:40:59 - Test1] Dx 
  PARSE ERROR:
  [2016-07-03 02:40:59 - Test1] Dx unsupported class file version 52.0
  ...while parsing com/example/test1/R$dimen.class
  
  [2016-07-03 02:40:59 - Test1] Dx 
  PARSE ERROR:
  [2016-07-03 02:40:59 - Test1] Dx unsupported class file version 52.0
  ...while parsing com/example/test1/R$id.class
  
  [2016-07-03 02:40:59 - Test1] Dx 
  PARSE ERROR:
  [2016-07-03 02:40:59 - Test1] Dx unsupported class file version 52.0
  ...while parsing com/example/test1/R$layout.class
  
  [2016-07-03 02:40:59 - Test1] Dx 
  PARSE ERROR:
  [2016-07-03 02:40:59 - Test1] Dx unsupported class file version 52.0
  ...while parsing com/example/test1/R$menu.class
  
  [2016-07-03 02:40:59 - Test1] Dx 
  PARSE ERROR:
  [2016-07-03 02:40:59 - Test1] Dx unsupported class file version 52.0
  ...while parsing com/example/test1/R$mipmap.class
  
  [2016-07-03 02:40:59 - Test1] Dx 
  PARSE ERROR:
  [2016-07-03 02:40:59 - Test1] Dx unsupported class file version 52.0
  ...while parsing com/example/test1/R$string.class
  
  [2016-07-03 02:40:59 - Test1] Dx 
  PARSE ERROR:
  [2016-07-03 02:40:59 - Test1] Dx unsupported class file version 52.0
  ...while parsing com/example/test1/R$style.class
  
  [2016-07-03 02:40:59 - Test1] Dx 11 errors; aborting
  [2016-07-03 02:40:59 - Test1] Conversion to Dalvik format failed with error 1
  </code></pre>
  
  <p>Which project settings do I need to change to fix them?</p>