MATLAB: Error: Attempt to reference field of non-structure array.

callbackgui

Hello, I am writing a small project with GUI and had this error while running the .fig file. This error does not happen when I click run while the .m file is open, only if I start directly from the .fig file.
Attempt to reference field of non-structure array.
Error in But_Disable (line 3)
Error in Minesweeper>Start_Callback (line 27)
But_Disable
Error in gui_mainfcn (line 96)
        feval(varargin{:});
Error in Minesweeper (line 15)
    gui_mainfcn(gui_State, varargin{:});
Error in @(hObject,eventdata)Minesweeper('Start_Callback',hObject,eventdata,guidata(hObject))
Error while evaluating uicontrol Callback
Please help me to see what is the problem, thanks. The files have been attached within the .zip file.

Best Answer

The .fig file is not a stand-alone GUI. The like named .m file instantiates the .fig as a GUI. The .fig is like a structure for building GUI rules, while the .m file contains the GUI functions and rules. So when you press the run button on fig without the .m file, it's probably passing a different input to the function than you would expect.
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