Cannot fit requested classes in a single dex file.Try supplying a main-dex list

Cannot fit requested classes in a single dex file.Try supplying a main-dex list

Just Add this line of your gradle files

android {
    defaultConfig {
        multiDexEnabled true
    }
}

then
dependencies {
    implementation 'com.android.support:multidex:1.0.3'
}
If you have migrated to AndroidX, you will want this instead:
dependencies {
    implementation 'androidx.multidex:multidex:2.0.1'
}