android - 无法解析 : com. android.support :support-compat:27. 2.0

Question

我的 App gradle 中的依赖项有问题:

apply plugin: 'com.android.application'

android {
compileSdkVersion 27
defaultConfig {
    applicationId "fr.android.MyApp"
    minSdkVersion 16
    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(include: ['*.jar'], dir: 'libs')
implementation 'com.android.support:appcompat-v7:25.1.1'
implementation 'com.android.support:animated-vector-drawable:27.1.1'
implementation 'com.android.support:support-compat:27.2.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.0'
implementation 'com.google.firebase:firebase-auth:11.6.0'
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'

出现错误的行是:

implementation 'com.android.support:animated-vector-drawable:27.1.1'

它说:解析失败:com.android.support:animated-vector-drawable:27.1.1

和:

我还得到:配置“compile”已过时，已被“implementation”和“api”取代。它将在 2018 年底被删除。

这是我的 build.gradle :

// 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:3.1.2'


    // NOTE: Do not place your application dependencies here; they belong
    // in the individual module build.gradle files
    classpath 'com.google.gms:google-services:3.1.1'
      }
   }

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

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

知道如何解决这个问题吗？提前致谢。

Answer 1

是因为你使用了老版本的appcompat库即:

implementation 'com.android.support:appcompat-v7:25.1.1'

将它的版本从 v7:25.1.1 更改为 27.1.1

例子:

dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation 'com.android.support:appcompat-v7:27.1.1'
implementation 'com.android.support:animated-vector-drawable:27.1.1'
implementation 'com.android.support:support-compat:27.1.1'
implementation 'com.android.support.constraint:constraint-layout:1.1.0'
implementation 'com.google.firebase:firebase-auth:11.6.0'
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'
}

更改后同步您的项目