训练yolov4中，修改 num_max_boxes: 为90 ，遇到的问题
Created by: CVdandelion
由于我用的是visdrone数据集，有的图片中标注对象比较多，我想把这个每张图片中包含ground truth 的数目，调大到，100，或者90。当我把trainreader中的num_max_boxes: 为90 ，出现这样的错误是为什么阿？
Error Message Summary:
InvalidArgumentError: The fed Variable gt_bbox should have dimensions = 3, shape = [-1, 90, 4], but received fed shape [4, 50, 4] [Hint: Expected DimensionIsCompatibleWith(shapes[i], in_dims) == true, but received DimensionIsCompatibleWith(shapes[i], in_dims):0 != true:1.] at (/paddle/paddle/fluid/operators/reader/read_op.cc:137) [operator < read > error]
还是说不应该不应该修改这个地方