spm8

hello,
marsbar does not work with spm8 and seems not to launch. 
is there a way to fix this?
 the errors are:
Warning: This usage of "spm ver" is now deprecated. 
  In spm at 811
  In mars_utils at 222
  In marsbar at 99
  In marsbar at 57
  In spm at 910
Warning: Name is nonexistent or not a directory: 
/Applications/matlabthings/spm8/toolbox/marsbar/spm6. 
   In path at 110
  In addpath at 87
  In marsbar at 108
  In marsbar at 57
  In spm at 910
MarsBaR analysis functions prepended to path
??? Undefined function or method 'mars_veropts' for input 
arguments of type 'char'.
Error in ==> marsbar at 112
mars_veropts('defaults');
Error in ==> marsbar at 57
marsbar('on');
Error in ==> spm at 910
    evalin('base',xTB(i).prog);
??? Error while evaluating uicontrol Callback

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