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[MOA] NullPointerException using OpenmlTaskEvaluator #16
Description
From @DraXus on February 15, 2015 18:20
I got the following error when running tasks in MOA (last version from OpenML website).
I tried different tasks and configurations:
openml.OpenmlDataStreamClassification -t 2177 -e openml.OpenmlTaskEvaluator
openml.OpenmlDataStreamClassification -l functions.NoChange -t 2172 -e openml.OpenmlTaskEvaluator
Failure reason: null
*** STACK TRACE ***java.lang.NullPointerException
at java.util.Arrays$ArrayList.<init>(Arrays.java:2842)
at java.util.Arrays.asList(Arrays.java:2828)
at moa.evaluation.LearningEvaluation.<init>(LearningEvaluation.java:53)
at moa.tasks.openml.OpenmlDataStreamClassification.doMainTask(OpenmlDataStreamClassification.java:175)
at moa.tasks.MainTask.doTaskImpl(MainTask.java:50)
at moa.tasks.AbstractTask.doTask(AbstractTask.java:57)
at moa.tasks.TaskThread.run(TaskThread.java:76)
In addition, the console log output looks fine without errors:
[15-02-2015 18:11:27] [OK] [Authenticate] Authentication successfull.
[15-02-2015 18:11:28] [INFO] [ARFF Cache] Stored dataset dataset_4_labor.arff to cache.
[15-02-2015 18:11:28] [OK] [Download] Obtained Stream Header.
However, it works if BasicClassificationPerformanceEvaluator is selected instead.
Copied from original issue: openml/OpenML#173
Activity
joaquinvanschoren commentedon Oct 20, 2017
Apiconnector has been upgraded several times. PLease check if this is still an issue (or close) :).