hello, 

I am running into the following error message whenever I try to run the preprocessing steps. I have not had this problem when I attempt to run my files the same way on another computer, so I thought it might have to do with where my conn has been installed? (I tried reinstalling conn directly into my spm folder, but that has not made a difference). Does anyone have any idea why my files may not be compiling?

Here is the error message:
ERROR DESCRIPTION:

Error using mat2file (line 16)
mat2file.c not compiled - see Makefile

Error in file_array/subsasgn>subfun (line 158)
mat2file(sobj,dat,va{:});

Error in file_array/subsasgn (line 85)
subfun(sobj,double(dat),args{:});

Error in spm_write_plane (line 31)
V.private.dat = subsasgn(V.private.dat,S,dat);

Error in spm_write_vol (line 84)
V = spm_write_plane(V,Y,':');

Error in conn_setup_preproc (line 1179)
spm_write_vol(a,b);

Error in conn (line 776)
ok=conn_setup_preproc('',varargin{2:end});

Error in conn (line 1501)
conn('gui_setup_preproc','select','structural');

CONN v.16.b
SPM12 + DEM FieldMap MEEGtools
Matlab v.2013b

Thank you very much!