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https://issues.apache.org/jira/browse/TOREE-500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Luciano Resende resolved TOREE-500.
-----------------------------------
Fix Version/s: 0.5.0
Resolution: Fixed
Support for Scala 2.12 has been added to master
> Failed to start Toree on Spark 2.4.2
> ------------------------------------
>
> Key: TOREE-500
> URL: https://issues.apache.org/jira/browse/TOREE-500
> Project: TOREE
> Issue Type: Bug
> Components: Kernel
> Affects Versions: 0.3.0
> Environment: * Docker Container(openjdk8)
> * Python 3.5
> Reporter: Masayuki Takahashi
> Priority: Major
> Fix For: 0.5.0
>
>
> {code}
> [I 04:07:48.726 NotebookApp] Kernel started:
> 1d46275c-71d6-4062-bc22-a98593d6c374
> Starting Spark Kernel with SPARK_HOME=/spark
> 19/05/05 04:07:53 WARN NativeCodeLoader: Unable to load native-hadoop library
> for your platform... using builtin-java classes where applicable
> Exception in thread "main" java.lang.NoClassDefFoundError: scala/App$class
> at org.apache.toree.Main$.<init>(Main.scala:24)
> at org.apache.toree.Main$.<clinit>(Main.scala)
> at org.apache.toree.Main.main(Main.scala)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> org.apache.spark.deploy.JavaMainApplication.start(SparkApplication.scala:52)
> at
> org.apache.spark.deploy.SparkSubmit.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:849)
> at
> org.apache.spark.deploy.SparkSubmit.doRunMain$1(SparkSubmit.scala:167)
> at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:195)
> at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:86)
> at
> org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:924)
> at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:933)
> at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
> Caused by: java.lang.ClassNotFoundException: scala.App$class
> at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> {code}
> Toree on Spark 2.4.1 works for me.
> See: https://github.com/jupyter/docker-stacks/issues/860
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