GitHub user washingon opened an issue:
https://github.com/apache/incubator-predictionio/issues/375
[ERROR] [Engine$] No engine found. Your build might have failed. Aborting.
- using PredictionIO-0.11.0-incubating
error when I build the engine with PredictionIO-0.11.0-incubating I get
error: [ERROR] [Engine$] No engine found. Your build might have failed.
Aborting.
```
ubuntu1604vm:~/mnt/PredictionIO-0.11.0-incubating/vendors/incubator-predictionio-template-attribute-based-classifier$
pio build
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in
[jar:file:/home/mnt/PredictionIO-0.11.0-incubating/lib/spark/pio-data-hdfs-assembly-0.11.0-incubating.jar!/org/slf4j/i
mpl/StaticLoggerBinder.class]
SLF4J: Found binding in
[jar:file:/home/mnt/PredictionIO-0.11.0-incubating/lib/pio-assembly-0.11.0-incubating.jar!/org/slf4j/impl/StaticLogger
Binder.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] [Engine$] Using command
'/home/mnt/PredictionIO-0.11.0-incubating/sbt/sbt' at
/home/mnt/PredictionIO-0.11.0-incubating/vendors/i
ncubator-predictionio-template-attribute-based-classifier to
build.
[INFO] [Engine$] If the path above is incorrect, this process will fail.
[INFO] [Engine$] Uber JAR disabled. Making sure
lib/pio-assembly-0.11.0-incubating.jar is absent.
[INFO] [Engine$] Going to run:
/home/mnt/PredictionIO-0.11.0-incubating/sbt/sbt package
assemblyPackageDependency in /home/mnt/Predict
ionIO-0.11.0-incubating/vendors/incubator-predictionio-template-attribute-based-classifier
[INFO] [Engine$] Compilation finished successfully.
[INFO] [Engine$] Looking for an engine...
[ERROR] [Engine$] No engine found. Your build might have failed. Aborting.
```
I built with the following to handle my environment:
./make-distribution.sh -Dscala.version=2.11.6 -Dspark.version=2.1.0
-Delasticsearch.version=2.3.3
results of pio status
```
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in
[jar:file:/home/mnt/PredictionIO-0.11.0-incubating/lib/spark/pio-data-hdfs-assembly-0.11.0-incubating.jar!/org/slf4j/i
mpl/StaticLoggerBinder.class]
SLF4J: Found binding in
[jar:file:/home/mnt/PredictionIO-0.11.0-incubating/lib/pio-assembly-0.11.0-incubating.jar!/org/slf4j/impl/StaticLogger
Binder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an
explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
[INFO] [Management$] Inspecting PredictionIO...
[INFO] [Management$] PredictionIO 0.11.0-incubating is installed at
/home/mnt/PredictionIO-0.11.0-incubating
[INFO] [Management$] Inspecting Apache Spark...
[INFO] [Management$] Apache Spark is installed at
/home/mnt/PredictionIO-0.11.0-incubating/vendors/spark-2.1.0-bin-hadoop2.7
[INFO] [Management$] 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.
```
env
```
PIO_SCALA_VERSION=2.11.6
PIO_FS_BASEDIR=/home/tmp/.pio_store
PIO_ELASTICSEARCH_VERSION=2.3.3
PIO_HADOOP_VERSION=2.7
PIO_SPARK_VERSION=2.1.0
PIO_HOME=/home/mnt/PredictionIO-0.11.0-incubating
```
pio app list
```
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in
[jar:file:/home/mnt/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:/home/mnt/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] [Pio$] Name | ID |
Access Key | Allowed Event(s)
[INFO] [Pio$] EC | 2 |
gDddcdL_1ehyZtA6-zwZ5XkTp6FzpobtSqbRJs5FyOCBvTjJsuzojn7HsuzlPnwN | (all)
[INFO] [Pio$] Finished listing 1 app(s).
```
engine.json:
```
{
"id": "default",
"description": "Default settings",
"engineFactory": "org.template.classification.ClassificationEngine",
"datasource": {
"params": {
"appName": "EC"
}
},
"algorithms": [
{
"name": "naive",
"params": {
"lambda": 1.0
}
}
]
}
```
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