Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via neuroph by reiden10
, 1 year ago
This exception has no message.
via neuroph by elisacarli
, 1 year ago
This exception has no message.
via Stack Overflow by chickensoup
, 1 year ago
java.lang.NullPointerException: 	at org.neuroph.nnet.learning.MomentumBackpropagation.updateNeuronWeights(MomentumBackpropagation.java:71)	at org.neuroph.nnet.learning.SigmoidDeltaRule.calculateErrorAndUpdateOutputNeurons(SigmoidDeltaRule.java:84)	at org.neuroph.nnet.learning.BackPropagation.updateNetworkWeights(BackPropagation.java:56)	at org.neuroph.core.learning.SupervisedLearning.learnPattern(SupervisedLearning.java:175)	at org.neuroph.core.learning.SupervisedLearning.doLearningEpoch(SupervisedLearning.java:148)	at test_neuroph.Main.main(Main.java:43)