Unable to access the interface for setting graphic components in MATLAB App Designer

Hello MATLAB community,

I am encountering an issue with MATLAB App Designer where I can no longer access the interface to configure the graphical components of my application. Many thanks in advance.

Answer 1

[Divyanshu]

Hi Idris,

From the description provided it is difficult to pinpoint the exact issue, but you can refer the following steps and see if it resolves the issue:

• Close the MATLAB App Designer and all other MATLAB-related applications.
• Navigate to the following path in your system: C:\Users\Username\AppData\Roaming\MathWorks\MATLAB\R2021a\ (NOTE: Replace "Username" with your Windows username and "R2021a" with your installed MATLAB version).
• Delete the ‘AppDesignerMainPanelLayout.json’ file in the folder.
• Restart MATLAB and try launching App Designer again.

Please refer the following documentation for further details about the ‘json’ file:

Configure Custom UI Components for App Designer - MATLAB & Simulink (mathworks.com)