Github user SachinJanani commented on the issue:
https://github.com/apache/zeppelin/pull/1197
@jongyoul This changes are only for branch-0.6 as master does not have this
files (even this code) anymore due to helium changes.Also i think issue might
not occur for zeppelin-0.7.So this is fix will only be for zeppelin-0.6.1.I
think it should be only be merged in branch-0.6.
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