Github user agoodm commented on the issue:
https://github.com/apache/zeppelin/pull/1534
@Leemoonsoo
Yep, I also had trouble starting Zeppelin. I can run it on my main
development directory, but couldn't when I cloned the current master branch to
an empty directory and patched my commits manually. I confirmed this by
deleting the note directory and then restarting Zeppelin, after which there
were no problems.
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