android - Firebase无法正常运行Android Studio 3.0.1 [com.android.support:support-core-utils:27.1.0]

Question

我正在尝试使用我的项目与Firebase同步，我使用Android Studio-> Firebase中的工具，然后执行Image步骤(这是新项目)。
Android Studio版本 3.0.1

App文件夹中的build.gradle为:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.example.eranp.fiberbase"
        minSdkVersion 19
        targetSdkVersion 26
        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.constraint:constraint-layout:1.0.2'
    implementation 'com.google.firebase:firebase-database:11.0.4'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
}


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

Project文件夹中的build.gradle

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

buildscript {

    repositories {
        jcenter()
        maven {
            url "https://maven.google.com"
        }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'
        compile "com.android.support:support-core-utils:27.1.0"


        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
        classpath 'com.google.gms:google-services:3.1.0'
    }
}

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

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

但是，当我同步项目时，出现以下错误:

Error:(13, 0) Could not find method compile() for arguments [com.android.support:support-core-utils:27.1.0] on object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler.

Please install the Android Support Repository from the Android SDK Manager.

但这已安装:Image。

我尝试使用Firebase工作了一个星期，但所有需要同步的工作。
我怎样才能解决这个问题？
谢谢你的帮忙!

Answer 1

添加后:

compile "com.android.support:support-core-utils:27.1.0"

在app / build.gradle中的依赖项下

那么您需要更改:

 compileSdkVersion 26

对此:

 compileSdkVersion 27

还将Firebase版本更新为此:

implementation 'com.google.firebase:firebase-database:11.8.0'

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