Thanks for your reply,
But when I finish the "setup" step and press "done", the matlab crash again!!! I am very confused about it as it crashed eveytime when it showed"importing the functional data" !What can I do, dear Aldonso? I have updated the conn toolbox from 18b to 19c and have tried them on MATLAB 2018b and 2017a. Sadly, none of them worked well. Everytime when it crashed, it always said that "Crash Decoding: Disabled - No sandbox or build area path" and "The error was detected while a MEX-file was running." The crashing code picture was attached in the file. Please tell me what else can I do? If I can't solve this problem, i will not be able to enter the next "DENOISING"step.
Looking forward to your reply soon.