MATLAB App Designer: Prediction Output Missing on Another System Despite Including All Files when creating an standalone application

I developed an image classification app using MATLAB App Designer that uses a pretrained EfficientNetV2L model to predict image labels. The app works perfectly on my system — it loads an image, displays it, and shows the predicted label.

I packaged the app using App Designer's Package App feature and manually included all required files: efficientnetv2l_MATLAB.mat, imagenet_labels.json, and supporting .m files.

However, after installing and running the .mlappinstall file on another system:

• The image displays correctly.
• But no predicted label appears, and no error is thrown — even though try-catch blocks are in place.

I’ve verified that all files are present post-installation. The issue does not seem related to file access or the JSON file, as it's already included manually.And here are the snapshots of my code and standalone application window.

Looking for guidance on what could be causing this issue or how to better debug it when the app runs without errors but silently fails on another system.

[Adarsh]

Hi @Asrith, To better understand and reproduce the issue, would you be able to share your App Designer (.mlapp) and required files?

[Asrith]

Yeah sure @Adarsh please find the attached (.mlapp) file below

[Umeshraja]

Hi @Asrith, Please attach all the files related to your App to debug further.