[FIXED] "error: package com.google.firebase.iid does not exist" After updating Firebase Crashlytics dependency

Issue

I have updated my Firebase Crashlytics from

implementation 'com.google.firebase:firebase-crashlytics:17.1.1'

to

implementation 'com.google.firebase:firebase-crashlytics:17.3.0'

Now I am getting this error:

error: package com.google.firebase.iid does not exist

When I try to import this:

import com.google.firebase.iid.FirebaseInstanceId;
import com.google.firebase.iid.InstanceIdResult;

This is my project level build.gradle file:

buildscript {
    ext {
        kotlin_version = '1.3.72'
    }
    repositories {
        google()
        jcenter()
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:4.1.1'
        classpath 'com.google.gms:google-services:4.3.4'
        classpath 'com.google.firebase:perf-plugin:1.3.4'
        classpath 'com.google.firebase:firebase-crashlytics-gradle:2.4.1'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.4.20" }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

This is my app level build.gradle file:

apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'
apply plugin: 'com.google.firebase.firebase-perf'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'com.google.firebase.crashlytics'

android {
    compileSdkVersion 30
    defaultConfig {
        applicationId "..."
        minSdkVersion 16
        targetSdkVersion 30
        versionCode ...
        versionName "..."
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        vectorDrawables.useSupportLibrary = true
    }
    buildTypes {
        release {
            minifyEnabled true
            //shrinkResources true NOT SUPPORTED FOR DYNAMIC MODULES
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            multiDexEnabled true
        }
        debug {
            multiDexEnabled true
        }
    }

    dynamicFeatures = [":premium", ':tutorial']
    compileOptions {
        sourceCompatibility = 1.8
        targetCompatibility = 1.8
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    api 'androidx.appcompat:appcompat:1.2.0'
    api 'com.google.android.material:material:1.2.1'
    api 'androidx.constraintlayout:constraintlayout:2.0.4'
    api 'com.google.android.play:core:1.8.3'
    api 'com.google.firebase:firebase-analytics:18.0.0'
    api 'com.google.firebase:firebase-perf:19.0.10'
    api 'com.google.firebase:firebase-invites:17.0.0'
    api 'com.google.firebase:firebase-firestore:22.0.0'
    api 'androidx.legacy:legacy-support-v4:1.0.0'
    api 'com.google.firebase:firebase-config:20.0.1'
    implementation 'com.google.firebase:firebase-appindexing:19.1.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.3.0'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
    api 'androidx.navigation:navigation-fragment:2.3.1'
    api 'androidx.cardview:cardview:1.0.0'
    api 'androidx.recyclerview:recyclerview:1.1.0'
    api 'androidx.preference:preference:1.1.1'
    implementation 'com.google.firebase:firebase-crashlytics:17.3.0'
    androidTestImplementation 'androidx.test:rules:1.3.0'
    api 'com.google.firebase:firebase-auth:20.0.1'
    api 'com.google.zxing:core:3.3.3'
    api 'com.android.billingclient:billing:3.0.1'
    //api 'com.facebook.android:facebook-android-sdk:5.15.3'
    implementation 'com.google.android.gms:play-services-ads-lite:19.5.0'
    implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
    implementation 'androidx.multidex:multidex:2.0.1'
    implementation 'com.google.android.datatransport:transport-runtime:2.2.5'
}

The error doesn't happen with firebase crashlytics dependency version 17.1.1 and below.

I have already tried:

• Rebuilding Project
• Cleaning Project
• Invalidating Cache and Restarting

Solution

The solution to this problem was that FirebaseInstanceId was depreciated. This means that it was removed from the library.

You can find more information about it here: https://firebase.google.com/docs/reference/android/com/google/firebase/iid/FirebaseInstanceId

Answered By - user14678216