Recently, when learning yolo4 and running your own data set with yolo4, I found that the
training set layer before revolutionary layer must output image.: no error.

1. Solution

Check the customized cfg file. The size of the input image is set as follows

if both height and width are set to a multiple of 32, this problem will not occur. I set it here as 416, 416

2. Follow up questions

Pay attention to setting size to the size of the picture in your dataset, otherwise, you may not be able to open the picture. The error is as follows

Can’t load image xxxxxxxxxxxxxxxxxx