UIgetfile Error on Matlab Online

When I run this line, I'm receiving this error. Not too sure how to interpret it. Thanks in advance for the help! I'm using Matlab Online.

[f_name p_name] = uigetfile('*.mat','Select the input data file(s)','MultiSelect', 'on');

Index exceeds the number of array elements (0).
Error in matlab.ui.internal.dialog.FileChooser/updateFromDialog (line 215)
                        obj.PathName = filepaths{1};
Error in matlab.ui.internal.dialog.FileChooser/prepareDialog/localupdate (line 95)
                updateFromDialog(obj,updateDataObject(obj));

[Geoff Hayes]

Michael - at what point do you see this error? After you have chosen a file? Have you chosen more than one file? It sounds like filepaths is empty so please describe what you have selected.

[Michael Chang]

I get this error after I've chosen a file (same result for one or multiple files).

Answer 1

[Cris LaPierre]

It appears the 'Multiselect' flag is what is causing the error. Remove that, and it should work.

[f_name p_name] = uigetfile('*.mat','Select the input data file(s)');

[Ahmad Gad]

What if I still need to select multiple files?

[Cris LaPierre]

If you are using MATLAB Online, you would need to use multiple calls to uigetfile. Multiselect is not currently supported in MATLAB Online.