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                                            Ivan Galkin

How to check if device have NFC ?

The method gives an enumeration that already shows support and current operation of the NFC module on the device ``` enum NFCAvailability { not_supported, disabled, available, } final NFCAvailability nfcAvailability...

'package:flutter/src/widgets/navigator.dart': Failed assertion: line 3418 pos 14: 'observer.navigator == null': is not true.

Solution - you must add the navigator observer to your router config Example for auto_route: ```dart router.config( navigatorObservers: () => [ ChuckerFlutter.navigatorObserver, ], ); ```