Github user kahirul commented on the issue:
https://github.com/apache/incubator-predictionio/issues/375
Hi, I'm also experiencing the same issue. I'm trying to build this template
https://github.com/apache/incubator-predictionio-template-recommender/tree/v0.4.0
I did modify the engine. Removing `rate` event from `DataSource.scala`
Here are output of `pio status`
```
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in
[jar:file:/root/PredictionIO-0.11.0-incubating/lib/spark/pio-data-hdfs-assembly-0.11.0-incubating.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in
[jar:file:/root/PredictionIO-0.11.0-incubating/lib/pio-assembly-0.11.0-incubating.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an
explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
[INFO] [Management$] Inspecting PredictionIO...
[INFO] [Management$] PredictionIO 0.11.0-incubating is installed at
/root/PredictionIO-0.11.0-incubating/
[INFO] [Management$] Inspecting Apache Spark...
[INFO] [Management$] Apache Spark is installed at
/root/PredictionIO-0.11.0-incubating/vendors/spark-2.1.0-bin-hadoop2.7
[INFO] [Management$] Apache Spark 2.1.0 detected (meets minimum requirement
of 1.3.0)
[INFO] [Management$] Inspecting storage backend connections...
[INFO] [Storage$] Verifying Meta Data Backend (Source: PGSQL)...
[INFO] [Storage$] Verifying Model Data Backend (Source: PGSQL)...
[INFO] [Storage$] Verifying Event Data Backend (Source: PGSQL)...
[INFO] [Storage$] Test writing to Event Store (App Id 0)...
[INFO] [Management$] Your system is all ready to go.
```
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