As far as I understand from your post, your app throws an Everlive is not defined
error when the app is build as APK and installed on Android device. The same issue occurs when the app is opened via a QR code in the companion app on iOS device.
Next, I would recommend you to check the order in which your scripts are being loaded depending on your application's life-cycle - is the Everlive instance used before it is loaded?
Also you may need to check whether there is another error in the developer console using the debugging tools as explained here
which prevents the script from loading.
If the issue persists, please provide a runnable sample that illustrates the issue and we will investigate it.
I look forward to your reply.
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