después de instalar el plugin iónico cordova agregue cordova-plugin-fcm-with-dependency-updated mi android construido no funciona

¡prueba esto!..

Paso 1 ionic cordova platform rm android

Paso 2 ve a /plugins/cordova-plugin-fcm-with-dependecy-updated/src/android/FCMPlugin.gradle

Cambiar así

buildscript {
    repositories {
        mavenCentral()
        jcenter()
        mavenLocal()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.+'
        classpath 'com.google.gms:google-services:3.1.+'
    }
}
repositories {
    mavenCentral()
    jcenter()
}
dependencies {
    compile 'com.google.firebase:firebase-core:11.4.2'
}
// apply plugin: 'com.google.gms.google-services'
// class must be used instead of id(string) to be able to apply plugin from non-root gradle file
apply plugin: com.google.gms.googleservices.GoogleServicesPlugin

Paso 3 ionic cordova platform add android

Paso 4 Ir a /platforms/android/project.properties

Cambia como los números a 11.4.2

cordova.system.library.3=com.google.firebase:firebase-core:11.4.2
cordova.system.library.4=com.google.firebase:firebase-messaging:11.4.2
cordova.system.library.7=com.google.android.gms:play-services-auth:11.4.2
cordova.system.library.8=com.google.android.gms:play-services-identity:11.4.2

Archivo demo project.properties

# This file is automatically generated by Android Tools.
# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
#
# This file must be checked in Version Control Systems.
#
# To customize properties used by the Ant build system edit
# "ant.properties", and override values to adapt the script to your
# project structure.
#
# To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):
#proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
# Project target.
target=android-26
android.library.reference.1=CordovaLib
cordova.gradle.include.1=cordova-plugin-badge/mobile-badge.gradle
cordova.system.library.2=com.facebook.android:facebook-android-sdk:4.25.0
cordova.system.library.3=com.google.firebase:firebase-core:11.4.2
cordova.system.library.4=com.google.firebase:firebase-messaging:11.4.2
cordova.gradle.include.2=cordova-plugin-fcm-with-dependecy-updated/mobile-FCMPlugin.gradle
cordova.system.library.6=com.android.support:appcompat-v7:25.+
cordova.system.library.7=com.google.android.gms:play-services-auth:11.4.2
cordova.system.library.8=com.google.android.gms:play-services-identity:11.4.2
cordova.gradle.include.3=cordova-plugin-local-notification/mobile-localnotification.gradle
cordova.gradle.include.4=cordova-plugin-telerik-imagepicker/mobile-ignorelinterrors.gradle
cordova.gradle.include.5=cordova-plugin-telerik-imagepicker/mobile-androidtarget.gradle
cordova.gradle.include.6=phonegap-plugin-barcodescanner/mobile-barcodescanner.gradle
cordova.system.library.11=com.android.support:support-v4:27.+
cordova.gradle.include.7=twitter-connect-plugin/mobile-twitter.gradle
cordova.system.library.12=com.squareup.okhttp3:okhttp:3.12.0

Paso 5 iónico cordova construir android

Note :: Don't forgot to add google-services.json file in root directory, main_project/google-services.json