As far as i understand, the problem lies with the model. Flutter is unable to load the model from the assets folder.

So please make sure,

1) The indentation (i.e the tab spaces) inside the pubspec.yaml file is correct

2) Assets folder has the correct model.tflite file, u could always easily retrain the model by just running the pythonscripts.ipynb file located in the repo and then use that model.

3) the appooption wasn't added to the 'android{}' block and instead added in some other block