Custom UI Components that I have created work as expected in an app (.mlapp) file. However, after closing the app file, upon reopening it, a warning dialog appears indicating that "Some components in this file could not be loaded."
I have been working on three components (which cannot be posted). All of them work separately and together in the app file as expected. However, if I load any one of them, or all three, into the app file, close the app file, and reopen it, any and all Custom UI Components are removed from the re-opened file.
I tried creating a new .mlapp file into which the components were placed. The results were the same.
Any help on keeping the components in the app file would be appreciated.
I do not know if this is related, but, for what it is worth, I followed the instructions on this page to configure each component before placing it in an app file:
Step three states: "click Add to Path to add the component and generated resources folder to the MATLAB path."
The way I understand that phrase, it means there should be two paths for each component. However, clicking Add to Path only ever adds one, pointing to the folder containing the component. Each time I attempted to manually add the "resources" folder using pathtool, I receive the following error:
You cannot add class folders (ones that start with '@'), package folders (ones that start with '+'), folders named 'resources', or private folders to the MATLAB search path.
Another possibly related point is that any MATLAB Project also has a resources folder. Two of the three components I referred to are in Project folders. However, one is not—that component, like the other two, is always automatically removed from any .mlapp file.
