I truly appreciate it! Your comments are very helpful!

Now, I am running Conn in the local storage. However, I ran into the below error messages. 
I think I got this message when the computer was running the first-level analysis.
I am wondering whether this message resulted from the ROI files that I created.
My ROI files were created by PickAtlas 2.5. Or, I am wondering if I am encountering a different issue.

Please let me know! Thank you so much! Ji Sook


ERROR DESCRIPTION:

Error using rest_mat2file
Problem writing data (3).
Error in file_array/subsasgn>subfun (line 125)
rest_mat2file(sobj,dat,va{:});
Error in file_array/subsasgn (line 63)
subfun(sobj,double(dat),args{:});
Error in spm_write_plane (line 33)
V.private.dat = subsasgn(V.private.dat,S,dat);
Error in conn_process (line 1698)
Yout{nroi}=spm_write_plane(Yout{nroi},t,slice);
Error in conn_process (line 25)
case 'analyses_gui_seed',disp(['CONN: RUNNING ANALYSIS STEP (ROI-to-ROI or seed-to-voxel analyses)']); conn_process([10:12,15],CONN_x.Analysis);