Andy,
This has nothing to do with Spark but I guess you don't have the proper Scala
version. The version you're currently running doesn't recognize a method in
Scala ArrayOps, namely: scala.collection.mutable.ArrayOps.$colon$plus
On Monday, January 18, 2016 7:53 PM, Andy Davidson
<[email protected]> wrote:
Many thanks. I was using a different scala plug in. this one seems to work
better I no longer get compile error how ever I get the following stack trace
when I try to run my unit tests with mllib open
I am still using eclipse luna.
Andy
java.lang.NoSuchMethodError:
scala.collection.mutable.ArrayOps.$colon$plus(Ljava/lang/Object;Lscala/reflect/ClassTag;)Ljava/lang/Object;
at org.apache.spark.ml.util.SchemaUtils$.appendColumn(SchemaUtils.scala:73) at
org.apache.spark.ml.feature.HashingTF.transformSchema(HashingTF.scala:76) at
org.apache.spark.ml.feature.HashingTF.transform(HashingTF.scala:64) at
com.pws.fantasySport.ml.TDIDFTest.runPipleLineTF_IDF(TDIDFTest.java:52) at
com.pws.fantasySport.ml.TDIDFTest.test(TDIDFTest.java:36) 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:497) at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at
org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at
org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at
org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at
org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
From: Jakob Odersky <[email protected]>
Date: Monday, January 18, 2016 at 3:20 PM
To: Andrew Davidson <[email protected]>
Cc: "user @spark" <[email protected]>
Subject: Re: trouble using eclipse to view spark source code
Have you followed the guide on how to import spark into eclipse
https://cwiki.apache.org/confluence/display/SPARK/Useful+Developer+Tools#UsefulDeveloperTools-Eclipse
?
On 18 January 2016 at 13:04, Andy Davidson <[email protected]>
wrote:
Hi
My project is implemented using Java 8 and Python. Some times its handy to look
at the spark source code. For unknown reason if I open a spark project my java
projects show tons of compiler errors. I think it may have something to do with
Scala. If I close the projects my java code is fine.
I typically I only want to import the machine learning and streaming projects.
I am not sure if this is an issue or not but my java projects are built using
gradel
In eclipse preferences -> scala -> installations I selected Scala: 2.10.6
(built in)
Any suggestions would be greatly appreciate
Andy
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