android - java.lang.RuntimeException: Unable to get provider com.google.firebase.provider.FirebaseInitProvider

When i trying to run my project this error showing

E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.kishankalola.earnbyspin, PID: 11122
java.lang.RuntimeException: Unable to get provider com.google.firebase.provider.FirebaseInitProvider: java.lang.ClassNotFoundException: Didn't find class "com.google.firebase.provider.FirebaseInitProvider" on path: DexPathList[[zip file "/data/app/com.kishankalola.earnbyspin-1/base.apk"],nativeLibraryDirectories=[/data/app/com.kishankalola.earnbyspin-1/lib/arm64, /system/lib64, /vendor/lib64, /system/vendor/lib64]]
at android.app.ActivityThread.installProvider(ActivityThread.java:6054)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:5611)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5550)
at android.app.ActivityThread.-wrap2(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1628)
at android.os.Handler.dispatchMessage(Handler.java:110)

at android.os.Looper.loop(Looper.java:203)
at android.app.ActivityThread.main(ActivityThread.java:6328)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1076)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:937)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.firebase.provider.FirebaseInitProvider" on path: DexPathList[[zip file "/data/app/com.kishankalola.earnbyspin-1/base.apk"],nativeLibraryDirectories=[/data/app/com.kishankalola.earnbyspin-1/lib/arm64, /system/lib64, /vendor/lib64, /system/vendor/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at android.app.ActivityThread.installProvider(ActivityThread.java:6039)

at android.app.ActivityThread.installContentProviders(ActivityThread.java:5611) 
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5550) 
at android.app.ActivityThread.-wrap2(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1628) 
at android.os.Handler.dispatchMessage(Handler.java:110) 
at android.os.Looper.loop(Looper.java:203) 
at android.app.ActivityThread.main(ActivityThread.java:6328) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1076) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:937) 

  apply plugin: 'com.android.application'
android {
compileSdkVersion 27
defaultConfig {
    applicationId "com.kishankalola.earnbyspin"
    minSdkVersion 21

    targetSdkVersion 27
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner 
"android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 

'proguard-rules.pro'
    }
}
} 
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:27.1.1'
implementation 'com.android.support.constraint:constraint-layout:1.1.2'
implementation 'com.android.support:design:27.1.1'
implementation 'com.google.firebase:firebase-core:11.8.0'

implementation 'com.google.firebase:firebase-auth:11.8.0'
implementation 'com.google.firebase:firebase-database:11.8.0'
implementation 'com.google.firebase:firebase-firestore:11.8.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}




apply plugin: 'com.google.gms.google-services'

// Top-level build file where you can add configuration options common to all 
sub-projects/modules.

buildscript {


repositories {
    google()
    jcenter()
}
dependencies {
    classpath 'com.android.tools.build:gradle:3.1.3'


    // NOTE: Do not place your application dependencies here; they belong
    // in the individual module build.gradle files

    classpath 'com.google.gms:google-services:4.0.1'
  }
}

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


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

 

package="com.kishankalola.earnbyspin">






    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"

    android:label="@string/app_name"
    android:roundIcon="@mipmap/ic_launcher_round"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">