an error （not enough input arguments）happens when I save a .mlapp file

I am developing an app using app designer.I run the .mlapp file and debug in code view.After debugging,I save the mlapp file,then an error happens: not enough input arguments.I run .mlapp again,then the same error happens.I want to know why,thank you.

Answer 1

[Smit]

Hi,

I understand that you are facing an issue in App Designer where you are getting the “Not enough input arguments” error when you are running your saved app file.

In App Designer you can specify the number of input arguments required for the application to run in the “startupFcn” function.

Look for the defintion of "startupFcn", example is as follows

function startupFcn(app, arg1);

The above line indicates that the application requires one input argument(“arg1”).

You might need to verify the “startupFcn” function in your application to determine whether your application requires any input arguments.

Further to give input arguments to the application you can expand the drop-down list from the “Run” button in the App Designer toolstrip. In the menu there will be an option to add input arguments. Select the option and enter comma separated arguments.

You can refer the documentation page for more information on working with input arguments.