ERROR SparkContext: Error initializing SparkContext.

在Intellij idea中测试写好的Spark程序,运行时报如下错误:

Using Spark’s default log4j profile: org/apache/spark/log4j-defaults.properties
20/06/14 21:45:56 INFO SparkContext: Running Spark version 2.3.4
20/06/14 21:45:57 ERROR SparkContext: Error initializing SparkContext.
org.apache.spark.SparkException: A master URL must be set in your configuration
at org.apache.spark.SparkContext.(SparkContext.scala:367)
at org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2493)atorg.apache.spark.sql.SparkSession$BuilderKaTeX parse error: Can't use function '$' in math mode at position 8: anonfun$̲7.apply(SparkSe…anonfun$7.apply(SparkSession.scala:925)atscala.Option.getOrElse(Option.scala:121)atorg.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:925)
at com.taxi.TaxiApp$.main(TaxiApp.scala:15)
at com.taxi.TaxiApp.main(TaxiApp.scala)


解决方法：
点击run

选择edit configuration

在VM options里写入-Dspark.master=local

-Dspark.master=local:表示设置我的spark程序以local模式运行.

参考文献：A master URL must be set in your configuration at org.apache.spark.SparkContext.(SparkContext.