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Running trainer wizard gets error #2

Description

@woolfel

I'm trying the zip release of version 2.98 of the studio. Environment

Windows 10
AMD 3700x
Java 15.0.2

I created a simple image recognition project following the tutorial on the website. I start the training wizard and enter the following values.

learning rate: 0.1
hidden layers: 1
percent: 50,50
max iterations: 50
max error: 0.5
cross val repeat count: 1

The error when I use 50,50 for the percents

SEVERE [com.jme3.gde.core.scene.SceneApplication]: Uncaught exception thrown in Thread[Thread-13,6,main]
java.lang.ClassCastException: org.neuroph.training.Variable cannot be cast to java.util.Stack
at org.neuroph.training.SetWorkflowParametarsTask.execute(SetWorkflowParametarsTask.java:29)
at org.neuroph.training.NeurophWorkflow.execute(NeurophWorkflow.java:102)
at org.neuroph.trainer.dynamicwizard.TrainerWizardDynamicWizardAction$1.run(TrainerWizardDynamicWizardAction.java:140)
[catch] at java.lang.Thread.run(Thread.java:748)

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