Github user fones commented on the issue:
https://github.com/apache/incubator-predictionio-template-recommender/issues/11
There is ongoing pull request that fix this issue:
https://github.com/apache/incubator-predictionio-template-recommender/pull/10
Untill then please use master branch
https://github.com/chanlee514/template-scala-parallel-recommendation
Download this template via git, do not use `pio template get`
It works for me.
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