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DL4J UI - play.api.UnexpectedException: Unexpected exception[InvocationTargetException: null] #5519

rahul-raj opened this Issue Jun 8, 2018 · 4 comments


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rahul-raj commented Jun 8, 2018

I'm getting an exception while running the UI.
Here's the code:
I just hit http://localhost:9000/ once after the port is opened & UI is started.
Selected the latest session where UI is running at the moment:
And I got these results:



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AlexDBlack commented Jun 18, 2018

Turns out you didn't actually include any code (looks like you intended to?)
I'm unable to reproduce this without some code (I tried a couple of things based on the stack trace, but everything runs fine for me)


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rahul-raj commented Jun 18, 2018

Since it was giving me error, I removed those block of code to go ahead and execute my code with other changes. Here you can find actual code that has UI in it:


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AlexDBlack commented Jul 23, 2018

I still haven't been able to reproduce this. But looking at the stack trace again, the only thing this can be is a concurrent modification issue. I've implemented a check to avoid this here: #5947

AlexDBlack added a commit that referenced this issue Jul 24, 2018

More misc fixes (#5947)
* #5255 Add pretrain overloads with epoch arg

* Add SingletonDataSetIterator; delete bad test

* #5238 global pooling layer no-arg constructor

* Fix failing test due to softmax backprop issue

* #5789 Conv1d config

* #5519 fix index out of bounds issue with UI

* Fix DataSet CNN mask merging + test

* Test + fixes for 4d mask MultiDataSet merging

* #5765 Fix OCNNOutputLayer issue

* Basic listener support for SharedTrainingMaster

* #5835 SharedTrainingMaster support for UI; make RemoteUIStatsStorageRouter serializable

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lock bot commented Sep 21, 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.

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