Arbiter: dropout exception

[AlexDBlack]

From gitter:
https://gist.github.com/newinai/64779bed42f434bdcc6272aeec2e3257

12:56:51.165 [main] WARN o.d.a.o.g.RandomSearchGenerator - Error getting configuration for candidate
java.lang.ClassCastException: org.deeplearning4j.nn.conf.dropout.Dropout cannot be cast to java.lang.Double
at org.deeplearning4j.arbiter.layers.LayerSpace.setLayerOptionsBuilder(LayerSpace.java:96)
at org.deeplearning4j.arbiter.layers.ActivationLayerSpace.getValue(ActivationLayerSpace.java:53)
at org.deeplearning4j.arbiter.layers.ActivationLayerSpace.getValue(ActivationLayerSpace.java:36)
at org.deeplearning4j.arbiter.ComputationGraphSpace.getValue(ComputationGraphSpace.java:116)
at org.deeplearning4j.arbiter.ComputationGraphSpace.getValue(ComputationGraphSpace.java:53)
at org.deeplearning4j.arbiter.optimize.generator.RandomSearchGenerator.getCandidate(RandomSearchGenerator.java:75)
at org.deeplearning4j.arbiter.optimize.runner.BaseOptimizationRunner.execute(BaseOptimizationRunner.java:143)

[lock]

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