cann't run the cnn example and debug the code

[yao-ying]

Hello,I have the follow conifguration
1、Windows 7 64bit
2、Matlab 2017b
3、Visual studio 2015
4、MatConvNet beta 25
5、Cuda 8.0.61
no cudnn in Matconvnet(cann't compile so give up)

first I use the matconvnet in the official website.I can run autonn/examples/cnn/mnist_example. but when I debug the code.there is an error MATLAB has encountered an internal problem and needs to close.I think may be I use a update version it may be right.So I use the github newest version.And now I cann't run autonn/examples/cnn/mnist_example,and it direct to the error MATLAB has encountered an internal problem and needs to close.Thanks.