Github user fjiang6 commented on the pull request: https://github.com/apache/spark/pull/7722#issuecomment-128165505 @AmplabJenkins Need your help. I can build with this command: sbt publish-local -Pyarn -Phadoop-2.4 -Dhadoop.version=2.5.2 and I can run all the tests. Please help understand the errors: not enough arguments for constructor LinearRegressionTrainingSummary: (predictions: org.apache.spark.sql.DataFrame, predictionCol: String, labelCol: String, featuresCol: String, objectiveHistory: Array[Double])org.apache.spark.ml.regression.LinearRegressionTrainingSummary. [error] Unspecified value parameter objectiveHistory. [error] val trainingSummary = new LinearRegressionTrainingSummary(
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