Error in appdesigner number of arguments

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Miguel A.
Miguel A. 2025-5-13
编辑： Miguel A. 2025-5-14
MATLAB version: 2022b.
When creating a simple app with just one single push button, and assigning a callback MATLAB automatically creates a function for the pushbutton:
function ButtonPushed(app, event)
But later, in the properties of the pushbutton, it creates thre arguments for the callback function:
app.Button.ButtonPushedFcn = createCallbackFcn(app, @ButtonPushed, true);
If I try to run this app, I get continuously the error:
Error using uibutton
Incorrect number of input arguments.
Error in temp1 (line 46)
createComponents(app)
How can I avoid that inconsitency? MATLAB does it automatically for me and I cannot change it because it is not in the editable area.
I have attached a screenshot.
Can someone please help me out?

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采纳的回答

Matt J
Matt J 2025-5-13
编辑：Matt J 2025-5-13
There's nothing wrong with the code. I suspect you have defined your own version of uibutton() somewhere shadowing the builtin function? Execute the following and report the output to us,
which -all uibutton
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Stephen23
Stephen23 2025-5-14
"May be there is nothing wrong with the code, but MATLAB is unable to run such a simple application."
Because you have created a file named UIBUTTON which shadows the inbuilt function.
"It produces the same error each time: a difference in the number of arguments for the Pushbutton."
Because you have created a file named UIBUTTON which shadows the inbuilt function.
"This is the output of that command"
U:\Folder\matlab\scripts\uibutton\uibutton.m % !!!!!!!! DELETE or RENAME !!!!!!!!!!!
Miguel A.
Miguel A. 2025-5-14
编辑：Miguel A. 2025-5-14
Thank you so much. Problem is solved. Issue seems to have raised when ICT related migration of user profiles internally at my institution took place and I had to redefine again my path.

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