Github user zjffdu commented on the issue:
https://github.com/apache/zeppelin/pull/3055
Actually we already import this when initialize spark interpreter.
https://github.com/apache/zeppelin/blob/master/spark/spark-scala-parent/src/main/scala/org/apache/zeppelin/spark/BaseSparkScalaInterpreter.scala#L171
The problem is that we would still hit this kind of error when run the
tutorial note of bank data. This is due to an issue scala 2.10
(SI-6649)[https://issues.scala-lang.org/browse/SI-6649]. This error doesn't'
happen before just because we split code into lines and interpret it line by
line. But as I mentioned before, interpret it line by line is not a correct
approach.
The good news is that it only affect scala 2.10.
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