lanking520 commented on issue #11775: NPE in BucketingModule when providedLabel of DataBatch is not set URL: https://github.com/apache/incubator-mxnet/issues/11775#issuecomment-405474141 Hi @milandesai could you please tell me which version of MXNet you are using? we are also facing some issues about `DataDesc` in some other issues. And you are right, there is no good way to avoid this. The minimum fix you can take is using what I have tried with [RNN example](https://github.com/apache/incubator-mxnet/pull/11753), adding a handler in this conversion function to let `None`/Empty `ListMap` being passed. There will be an upcoming PR address this issue. Since it was a pain from `v0.11.0`. The currently planning is getting rid of `ListMap` and use `DataDesc` entirely so we can avoid the implicit conversion. Will keep track on this and see if that can help.
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