Packaging Apps and M files - M files duplicated

Currently re-building a toolbox containing 3 apps from something developed in R2018b now building with R2024a.

When I run an app, it is using a seperate copy of an m file contain within its own folder rather than the m file installed with the rest of the toolbox m files. Toolboxes and Apps now appear to be installed to seperate directories.

Is there a method to package an app as part of a toolbox without duplicating m files in the App's folder?

Answer 1

[Aditya]

Hi Scott,

This is a common issue when upgrading MATLAB toolboxes and apps, especially since the packaging and installation structure has changed between R2018b and R2024a. Here are a few steps that ,ight help you solve the issue:

• Put all shared .m files in your toolbox (not in the app folder).
• Package the app (.mlappinstall) to only include the .mlapp file, not the shared .m files.
• When packaging the app, uncheck/remove any .m files that are already in the toolbox.

You can also refer to the following documentation for more details.

https://www.mathworks.com/help/matlab/gui-development.html

[Scott]

Great thanks.

The only reason I need to package the apps first is that you can't set an icon for them if you just add them directly to a toolbox.