Can't connect Firebase to Android project.

[rielyn]

In an attempt to connect Firebase to Android project, a mistake goes out: "Build was configured to prefer settings repositories over project repositories but repository 'Google' was added by build file 'build.gradle'." By checking, I realized the mistake was coming out of build.gradle in the lines.

allprojects {
repositories {
    // Check that you have the following line (if not, add it):
    google()  // Google's Maven repository
}
}

In the line

google() / Google's Maven repository

If this line is removed, there is no error. Help, please?

Cod build.gradle project

buildscript {
    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        classpath "com.android.tools.build:gradle:7.0.3"
        classpath 'com.google.gms:google-services:4.3.10'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}
allprojects {

// ...
repositories {
    // Check that you have the following line (if not, add it):
    google()  // Google's Maven repository
    // ...
}

}
task clean(type: Delete) {

delete rootProject.buildDir

}

Cod build.gradle app:

    id 'com.android.application'

}

android {

compileSdk 31
defaultConfig {
    applicationId "com.example.photo42"
    minSdk 24
    targetSdk 31
    versionCode 1
    versionName "1.0"

    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}

buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
    }
}
compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
}

}
dependencies {
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:2.0.4'
testImplementation 'junit:junit:4.+'
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'

P.S. Initially in build.gradle was not allprojects. I did it myself.

[elysha]

In the new version, a mistake might be made in rows.

allprojects {
    // ...
repositories {
    // Check that you have the following line (if not, add it):
    google()  // Google's Maven repository
    // ...
}

}

Get them out of the gradle, that should help!