title: "cannot find symbol method setBatchPath(String)" in the generated source from generated endpoint
body: <p>For an unknown reason, when I tried to build my Google App Engine endpoints, I get these errors in all of the API java files generated by Android Studio:</p>
  
  <p><strong>Error:(400, 5) error: method does not override or implement a method from a supertype
  Error:(402, 29) error: cannot find symbol method setBatchPath(String)</strong></p>
  
  <p>I did some initial troubleshooting and found out that there's a Builder class inside the java file and it extends <strong>AbstractGoogleJsonClient.Builder</strong>.  I looked at the source for the Builder class and I cannot find the method.</p>
  
  <p>Why all of the sudden am I getting these errors?  Help!</p>