Ionic-framework: Native APIs not working in ionic4/Angular

[Alex1000A]

Bug Report

Ionic Info

ionic (Ionic CLI) : 4.0.0-rc.11 (C:Users\alex.auyong\AppData\Roamingnpmnode_modules\ionic)
Ionic Framework : @ionic/angular 4.0.0-alpha.9
@angular-devkit/core : 0.7.0-rc.1
@angular-devkit/schematics : 0.7.0-rc.1
@angular/cli : 6.0.8
@ionic/ng-toolkit : 1.0.0-rc.10
@ionic/schematics-angular : 1.0.0-rc.10

Cordova:

cordova (Cordova CLI) : 8.0.0
Cordova Platforms : android 7.0.0

System:

NodeJS : v8.11.2 (C:\Program Filesnodejsnode.exe)
npm : 6.2.0
OS : Windows 10

Environment:

ANDROID_HOME : C:Users\alex.auyong\Tools\androidSDK;

Describe the Bug
I'm getting a unexpected error when I try to use the Native Plugin
(1-GooglePlus)
(2-BarcodeScanner)

Steps to Reproduce
Steps to reproduce the behavior:
1-Create template by CLI
2-Install the plugin from https://beta.ionicframework.com/docs/native/barcode-scanner
4-Add dependancy injection to the constructor
3-Lanuch on device:ionic cordova run android -l

Related Code

Github:https://github.com/Alex1000A/ionic_Alpha

Expected Behavior
The App should launch properly

[mhartington]

Hi there! So a few things that are needed.

• Update Ionic native to V5 beta

npm i @ionic-native/barcode-scanner@beta --save
npm i @ionic-native/core@beta --save

• Update the imports to the newer paths.

import { BarcodeScanner } from "@ionic-native/barcode-scanner";

Becomes

import { BarcodeScanner } from "@ionic-native/barcode-scanner/ngx";

This should resolve the issue.
With V4 of the framework, we've upgraded to RXJS V6. So Ionic-Native needed a new release to account for that as well.

[ionitron-bot[bot]]

Thanks for the issue! This issue is being locked to prevent comments that are not relevant to the original issue. If this is still an issue with the latest version of Ionic, please create a new issue and ensure the template is fully filled out.