Github user liusztc09 commented on the issue: https://github.com/apache/zeppelin/pull/2231 @zjffdu I run into the same issue with Livy 0.4 and Spark 2.2.1. There is a comment by you saying it's only affecting livy 0.2 in https://issues.apache.org/jira/browse/ZEPPELIN-3269. Not sure whether it's fixed yet. Seems the old method was still being called. https://github.com/apache/zeppelin/search?utf8=%E2%9C%93&q=appUIAddress%28%29+&type= Any workarounds or ETA on the fix? Thanks!