[GitHub] [incubator-mxnet] leezu commented on issue #17925: any.h:286: Check failed: type_ != nullptr The any container is empty requested=N5mxnet10Imperative6AGInfoE

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

leezu commented on issue #17925:
URL: https://github.com/apache/incubator-mxnet/issues/17925#issuecomment-991028840


   Closing as a duplicate of https://github.com/apache/incubator-mxnet/issues/9712
   Please use `autograd.backward(losses)`
   instead of
   
   ```
   for loss in losses:
       loss.backward()
   ```
   
   Another option is to use `loss.backward(retain_graph=True)`


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