Why my AIDE not downloading Google Firebase libraries?

I am using android AIDE app to make android application. Before i factory reset my android, I have all google, android & firebase libraries are downloaded & installed. But after factory reset, when i install again AIDE app, It download only google & firebase library. And when i put firebase dependency in build gradle, it not downloading firebase library for me. Please help me in these case.

Here's my build gradle :

apply plugin: 'com.android.application'

android {
compileSdkVersion 21
buildToolsVersion "21.1.0"

defaultConfig {
    applicationId "com.rb.aagrikoli"
    minSdkVersion 18
    targetSdkVersion 25
    versionCode 1
    versionName "1.0"
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}}
dependencies {
compile 'com.google.android.gms:play-services-ads:+'
compile 'com.google.firebase:firebase-auth:+'
compile 'com.android.support:cardview-v7:+'
compile 'com.android.support:support-v4:+'
compile 'com.android.support:appcompat-v7:+'
compile 'com.roughike:bottom-bar:2.3.1'
compile 'com.github.bumptech.glide:glide:4.7.1'

compile fileTree(dir: 'libs', include: ['*.jar'])
}
apply plugin: 'com.google.gms.google-services'

Solution

You should use the latest versions of all library in your gradle file try to replace all the library accourding to your target SDK Also change the compileSdkVersion 21 buildToolsVersion "21.1.0" to 25(same with target sdk)