当有一个case对象时,如何调整它以使其工作:目前,它无法在宏展开期间异常编译: at scala.reflect.api.Symbols$SymbolApi$class.asTerm(Symbols.scala:199):573)
at shapeless.GenericMacros$Helper$$anonfun$19.a
我想在Java中调用以下Scala代码:package calculate
Exception in thread "main" java.lang.NoClassDefFoundError: scala/Function2
at calculate.CalculationScala.main(CalculationScala.scala</
我正在尝试运行一个用scala编写的mapreduce程序。我在类路径中包含了scala库。在运行程序时,我的程序会抛出以下错误。在线程"main“~/lib/org.scala-lang.scala-library_2.12.2.v20170412-161608-VFINAL-21d12e9.jar : scala/Predef$ at com.learning.spark.WordCount$.main(WordCount.scala<
读取Spark2.0中的多行json文件时出现异常 val data = spark.read .json("C:\\user\\Spark\\DataSets\\employees_multiLine.json") 线程"main“java.lang.IllegalAccessError中出现异常:尝试从org.apache.hadoop.mapreduce.lib.input.FileInputFormat.listSt
当尝试在HIB中的图像上运行作业Facecount时,我得到了此异常。我已经在类路径中包含了hipi-2.1.0.jar。org.apache.hadoop.yarn.exceptions.YarnRuntimeException: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class org.hipi.mapreduce.BinaryOutputFormat not found
at org.apache.hadoop.mapreduce</
则sqoop作业失败,并显示java.lang.ClassNotFoundException : Class not found15/11/11 11:25:18 INFO mapred.LocalJobRunner: map task executor completeWARN mapred.LocalJobRunner: job_local194018022_0001
java.l
: Class scala.runtime.Nothing$ not found>java.lang.RuntimeException: java.lang.ClassNotFoundExceptionMapReduceJob - Map 100% Reduce 0%
[error] (run-main) com.nicta.scoobi.impl.exec.JobExecException: MapReducePlease see http://localhost:8080/ for more