I am trying to print a basic twitter stream and receiving the following
error:


15/05/18 22:03:14 INFO Executor: Fetching
http://192.168.56.1:49752/jars/twitter4j-media-support-3.0.3.jar with
timestamp 1432000973058
15/05/18 22:03:14 INFO Utils: Fetching
http://192.168.56.1:49752/jars/twitter4j-media-support-3.0.3.jar to
C:\Users\Justin\AppData\Local\Temp\spark-4a37d3
e9-34a2-40d4-b09b-6399931f527d\userFiles-65ee748e-4721-4e16-9fe6-65933651fec1\fetchFileTemp8970201232303518432.tmp
15/05/18 22:03:14 ERROR Executor: Exception in task 0.0 in stage 0.0 (TID 0)
java.lang.NullPointerException
        at java.lang.ProcessBuilder.start(ProcessBuilder.java:1012)
        at org.apache.hadoop.util.Shell.runCommand(Shell.java:482)
        at org.apache.hadoop.util.Shell.run(Shell.java:455)
        at
org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.ja
va:715)
        at org.apache.hadoop.fs.FileUtil.chmod(FileUtil.java:873)
        at org.apache.hadoop.fs.FileUtil.chmod(FileUtil.java:853)
        at org.apache.spark.util.Utils$.fetchFile(Utils.scala:443)
        at
org.apache.spark.executor.Executor$$anonfun$org$apache$spark$executor$Executor$$updateDependencies$5.apply(Executor.scala:374)
        at
org.apache.spark.executor.Executor$$anonfun$org$apache$spark$executor$Executor$$updateDependencies$5.apply(Executor.scala:366)
        at
scala.collection.TraversableLike$WithFilter$$anonfun$foreach$1.apply(TraversableLike.scala:772)
        at
scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:98)
        at
scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:98)
        at
scala.collection.mutable.HashTable$class.foreachEntry(HashTable.scala:226)
        at scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:39)
        at scala.collection.mutable.HashMap.foreach(HashMap.scala:98)
        at
scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:771)
        at
org.apache.spark.executor.Executor.org$apache$spark$executor$Executor$$updateDependencies(Executor.scala:366)
        at
org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:184)
        at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:744)


Code is:

spark-shell --jars
\Spark\lib\spark-streaming-twitter_2.10-1.3.1.jar,\Spark\lib\twitter4j-async-3.0.3.jar,\Spark\lib\twitter4j-core-3.0.3.jar,\Spark\lib\twitter4j-media-support-3.0.3.jar,\Spark\lib\twitter4j-stream-3.0.3.jar

import org.apache.spark.streaming.twitter._
import org.apache.spark.streaming._

System.setProperty("twitter4j.oauth.consumerKey","*****")
System.setProperty("twitter4j.oauth.consumerSecret","*****")
System.setProperty("twitter4j.oauth.accessToken","*****")
System.setProperty("twitter4j.oauth.accessTokenSecret","*****")

val ssc = new StreamingContext(sc, Seconds(10))
val stream = TwitterUtils.createStream(ssc, None)
stream.print
ssc.start


This seems to be happening at FileUtil.chmod(targetFile.getAbsolutePath,
"a+x") but Im not sure why...



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