XGBoostEstimator is not a member of package ml.dmlc.xgboost4j.scala.spark ?

[amal15]

XGBoostEstimator is not a member of package ml.dmlc.xgboost4j.scala.spark ?How can I resolve this error?

[Kaniz_Fatma]

Hi @amal15, The error message you’re encountering, “XGBoostEstimator is not a member of package ml.dmlc.xgboost4j.scala.spark,” indicates that the XGBoostEstimator class is not being recognized within the specified package. 

1. Check Dependencies:

   • Ensure that you have the necessary dependencies correctly set up in your project.
   • Verify that you have the XGBoost library (both the XGBoost4J and XGBoost4J-Spark components) properly installed.
   • If you’re using Spark, make sure you have the appropriate version of XGBoost4J-Spark compatible with your Spark version.

2. Classpath Configuration:

   • When running your Spark application, make sure the XGBoost JAR is included in the classpath.
   • You can specify the JAR using the --conf spark.jars option when launching Spark.
   • For example:

     ./bin/spark-shell --conf spark.jars=/path/to/xgboost4j.jar
     

3. Import Statements:

   • Double-check your import statements in your Scala code.
   • Make sure you’re importing the XGBoostEstimator class from the correct package.
   • The correct import should look like this:

     import ml.dmlc.xgboost4j.scala.spark.XGBoostEstimator
     

4. Partition Count (Advanced):

   • In some cases, the error might be related to the expected number of partitions in your training data.
   • Refer to the XGBoost4J-Spark source code for insights into how the partition count is handled.

If you continue to face issues, feel free to provide additional context or ask for further assistance! 😊