[GitHub] chowkamlee81 commented on issue #8865: Check failed: i < head_grads.size() && !head_grads[i].is_none() Because the last operator is not Loss function, head_gradient is required when calling backward. If you are attempting to minimize the output as an objective, please modify your network and pass it through the make_loss symbol.

[GitBox <gi...@apache.org>]

chowkamlee81 commented on issue #8865: Check failed: i < head_grads.size() && !head_grads[i].is_none() Because the last operator is not Loss function, head_gradient is required when calling backward. If you are attempting to minimize the output as an objective, please modify your network and pass it through the make_loss symbol.
URL: https://github.com/apache/incubator-mxnet/issues/8865#issuecomment-347837152
 
 
   Problem solved by returning only 'softmax' function than return 'group' symbol

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