[MXNet Forum] Gradient of Parameter `ssd1_batchnorm0_beta` on context gpu(0) has not been updated by backward since last `step`

[Mahin Qureshi via MXNet Forum]

I am trying to execute this code in the link  
[https://github.com/awslabs/handwritten-text-recognition-for-apache-mxnet/blob/master/2_line_word_segmentation.ipynb](https://github.com/awslabs/handwritten-text-recognition-for-apache-mxnet/blob/master/2_line_word_segmentation.ipynb)
  for .. and im new in this frame work ..and i have to idea why i'm getting 
this warning , i'm executing their code as it is , can anyone please help me 
out ..![Screenshot (215)|690x387](upload://qUBJIGDoJ74bFvm7fTKA17Jc5j5.png) 
![Screenshot (216)|690x387](upload://avkHMIxqykxBcGL6LtIsPzFfNh5.png) 
![Screenshot (217)|690x387](upload://xhbTxWU9hKVLkyqmc88Cioj7jLl.png)





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