[FieldTrip] problem occurs when using ft_timelockanalysis

[s.rombetto at cib.na.cnr.it]

Dear fieldtrippers

I'm encountering a problem when  running ft_timelockanalysis in Matlab.
I receive the following message:

"A Undefined function 'mxSerialize_cpp' for input arguments of type 'struct'

Error in mxSerialize (line 35)
   argout = mxSerialize_cpp(argin);

Error in ft_preamble_provenance (line 67)
     cfg.callinfo.inputhash{iargin} = CalcMD5(mxSerialize(tmparg));

Error in ft_preamble (line 54)
   evalin('caller', ['ft_preamble_' cmd]);

Error in ft_timelockanalysis (line 95)
ft_preamble provenance data"


I am using \fieldtrip-20140506 and matlab R2014a - 64 bit

Any suggestion is highly appreciated.
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