there are a couple issues with the application (whose name is hardwired in the library). i believe the app is no longer available, and it may not function on recent versions of the os. the library was written a long time ago. zxing turned the reins over to google (or perhaps google took them). anyway, zxing has not updated since 2016. google's barcode readers are essentially zxing, and google was performing any updates. if you've been distributing an app with this library, you have a problem. if you've been using the library for your own amusement, pick another one from the many shown here. member schoeman has a nice selection. and erel has one using google's mobilevision.