Dear Nils, I cannot reproduce this error and that bit of code is quite old and hasn't changed recently. I suggest that you do: which voltype in the command line and if you have a function with that name, remove it from your path. Best, Vladimir On Wed, Oct 1, 2014 at 9:06 AM, Nils Rosjat <[log in to unmask]> wrote: > Dear SPM expert, > > I got another error message when I tried to use the group inversion option > for 3D source reconstruction directly after clicking the button "Group > inversion" in the GUI: > > Error: File: spm_eeg_inv_group.m Line: 197 Column: 9 > "voltype" previously appeared to be used as a function or command, > conflicting with its use here as the name of a variable. > A possible cause of this error is that you forgot to initialize the > variable, or you have initialized it implicitly using load or eval. > > > Error in spm_eeg_inv_imag_api>group_Callback (line 483) > spm_eeg_inv_group; > > Error in spm_eeg_inv_imag_api (line 53) > feval(varargin{:}); % FEVAL switchyard > > Error while evaluating uicontrol Callback > > > Do you have any idea how this problem could be solved? > > Best, > Nils > __________________ > Dipl.-Math. Nils Rosjat > University of Cologne > Biozentrum > Zuelpicher Str. 47b > 50674 Cologne > [log in to unmask] >