Matlab is crashing while running "script_rpn_pedestrian_VGG16_caltech"

[BastianBlossom]

When I am running this file : 'script_rpn_pedestrian_VGG16_caltech' I am getting matlab is crashed and getting this error in the terminal:
Check failed: fd != -1 (-1 vs. -1) File not found: .\models\rpn_prototxts\vgg_16layers_conv3_1\train_val.prototxt
*** Check failure stack trace: ***
But I have this file "train_val.prototxt" in above mentioned path
Any one encountered this kind of error? Please provide a path out of this.