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Simple ComputationGraph is not working, probably due to not supported Vertex as Output Layer #3858

StefanoSamele opened this issue Aug 14, 2017 · 1 comment


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commented Aug 14, 2017

I created a simple example of ComputationGraph:

But when I execute those few lines I get the following error:
Exception in thread "main" java.lang.NullPointerException
at org.deeplearning4j.nn.graph.ComputationGraph.output(
at org.deeplearning4j.nn.graph.ComputationGraph.output(

As we are currently working on an SSD network, it might be crucial to have a MergeVertex as output layer.
Thank you for your support.

@AlexDBlack AlexDBlack self-assigned this Aug 14, 2017


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commented Sep 25, 2018

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.

@lock lock bot locked and limited conversation to collaborators Sep 25, 2018

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