hi, help me please to resolve this issues
<repr(<pyspark.rdd.PipelinedRDD at 0x7fcf874698d0>) failed: Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transforamtion. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063.>
