error while training the RPN

[Yezipiaomu]

I am very sorry to disturb you !
I cannot find the solution

when I run script_rpn_pedestrian_VGG16_caltech.m
the error comes as below:

Warrning: no windows proposal is loaded !
Reference to non-existent field 'sizes'.

Error in roidb_from_caltech (line 52)
height = imdb.sizes(1,1);

Error in Dataset.caltech_test (line 9)
dataset.roidb_test = dataset.imdb_test.roidb_func(dataset.imdb_test, false);

Error in script_rpn_pedestrian_VGG16_caltech (line 32)
dataset = Dataset.caltech_test(dataset, 'test');

I am very appreciate you to answer this!!!!

[zhangliliang]

Might be solve after removing the imdb\cache folder, and then re-run the script for re-generate the imdb and roidb.