Gradle构建工具找不到play-services-tasks.aar？为什么？

Question

今天突然,当我试图在Android工作室中运行我的应用程序时出现错误.

它是:

Error: Could not find play-services-tasks.aar (com.google.android.gms:play-services-tasks:15.0.1).
Searched in the following locations:
    https://jcenter.bintray.com/com/google/android/gms/play-services-tasks/15.0.1/play-services-tasks-15.0.1.aar

我没有更改gradle文件中的任何内容,但突然出现了.我的上一个版本在几分钟前成功执行.

为什么它找不到 com.google.android.gms中的play-services-tasks.aar哪一部分:play-services-tasks:15.0.1

采取的步骤:

我检查了是否在gradle文件中包含了所有存储库,到目前为止所有存储库都是正确的.

为什么这个错误会突然发生？

我还将此链接https://jcenter.bintray.com/com/google/android/gms/play-services-tasks/15.0.1/play-services-tasks-15.0.1.aar复制到浏览器中,但它正在运行很好,就是我得到了"文件下载"对话框.

---

我的Gradle文件

• 应用级别

  apply plugin: 'com.android.application'
  
  android {
      compileSdkVersion 26
      buildToolsVersion "26.0.2"
      defaultConfig {
          applicationId "mekanic24assistantapplication.heba.mekanic24.com.mekanic24assistantapplication"
          minSdkVersion 14
          targetSdkVersion 26
          versionCode 13
          versionName "2.1"
          testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
          multiDexEnabled true
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
  
  
      dexOptions {
          incremental true
          javaMaxHeapSize "4g"
      }
  
  //    err Android Gradle Duplicate files copied in APK META-INF/license.txt
  
      configurations.all {
  
          resolutionStrategy {
              force 'com.android.support:support-v4:26+'
              force 'com.android.support:support-annotations:26+'
  
  
          }
  
      }
  
  
      packagingOptions {
          exclude 'META-INF/DEPENDENCIES.txt'
          exclude 'META-INF/LICENSE.txt'
          exclude 'META-INF/NOTICE.txt'
          exclude 'META-INF/NOTICE'
          exclude 'META-INF/LICENSE'
          exclude 'META-INF/DEPENDENCIES'
          exclude 'META-INF/notice.txt'
          exclude 'META-INF/license.txt'
          exclude 'META-INF/dependencies.txt'
          exclude 'META-INF/LGPL2.1'
      }
  
  }
  
  dependencies {
      compile fileTree(include: ['*.jar'], dir: 'libs')
      androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
          exclude group: 'com.android.support', module: 'support-annotations'
      })
      //   compile 'com.android.support:appcompat-v7:26.3.1'
      compile 'com.android.support:appcompat-v7:26+'
      compile 'com.android.support:design:26+'
      compile 'com.android.support:recyclerview-v7:26+'
      compile 'com.android.support:cardview-v7:26+'
      compile 'com.android.support.constraint:constraint-layout:1.0.2'
      androidTestCompile 'com.android.support:support-annotations:26+'
      testCompile 'junit:junit:4.12'
      //   compile 'com.android.support:appcompat-v7:26.3.1'
      compile 'com.github.markushi:circlebutton:1.1'
      //  compile 'com.android.support:design:26.3.1'
      compile 'com.android.volley:volley:1.0.0'
      compile 'com.google.android.gms:play-services-base:15.0.1'
      compile 'com.android.support:multidex:1.0.1'
      compile 'com.firebase:firebase-client-android:2.5.2'
      compile 'com.google.firebase:firebase-core:15.0.2'
      compile 'com.google.firebase:firebase-messaging:15.0.2'
      compile 'com.google.firebase:firebase-database:15.0.0'
      compile 'com.wang.avi:library:2.1.3'
      compile 'de.hdodenhof:circleimageview:2.2.0'
      compile 'android.lib.recaptcha:reCAPTCHA:2.0.0'
      compile 'com.google.android.gms:play-services-safetynet:15.0.1'
      compile 'com.google.android.gms:play-services-maps:15.0.1'
      compile 'com.google.android.gms:play-services-places:15.0.1'
      compile 'com.google.android.gms:play-services-location:15.0.1'
  
      compile 'com.squareup.picasso:picasso:2.5.2'
      testCompile 'junit:junit:4.12'
      compile 'com.anjlab.android.iab.v3:library:1.0.38'
      compile files('libs/mail.jar')
      compile files('libs/additionnal.jar')
      compile files('libs/activation.jar')
      compile 'com.jakewharton:butterknife:8.8.1'
      annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'
      compile 'com.yarolegovich:lovely-dialog:1.1.0'
      compile 'com.mobsandgeeks:android-saripaar:2.0.3'
      compile 'com.github.stfalcon:smsverifycatcher:0.3.1'
      compile 'ch.acra:acra:4.9.0'
      //TODO:  Apache 2.0 license https://github.com/ACRA/acra
      compile 'com.google.android.gms:play-services-ads:15.0.1'
      compile 'com.github.luongvo:GmailBackground:2.0.2'
  
  }
  apply plugin: 'com.google.gms.google-services'
  

• 项目层面
  
  

  buildscript {
  repositories {
      jcenter()
      maven { url 'https://maven.google.com' }
      maven {
          url "https://dl.bintray.com/android/android-tools"
      }
  
      maven { url "https://jitpack.io" }
      google()
  
  }
  dependencies {
      classpath 'com.android.tools.build:gradle:2.3.2'
  
      classpath 'com.google.gms:google-services:3.2.0'
  }
  }
  
  allprojects {
  repositories {
      jcenter()
      maven { url 'https://maven.google.com' }
      maven {
          url "https://dl.bintray.com/android/android-tools"
      }
  
      maven { url "https://jitpack.io" }
      google()
  
  }
  }
  
  task clean(type: Delete) {
  delete rootProject.buildDir
  }
  

Answer 1

执行以下更改后,错误消失:

1. maven { url 'https://maven.google.com' }从app build.gradle中的存储库中删除.
2. 添加maven { url 'https://maven.google.com' }为顶级build.gradle 中allprojects/repositories中的第一个条目
3. 将所有播放服务和firebase依赖项更改为最新版本
4. 将google-services插件的版本更改为 classpath 'com.google.gms:google-services:4.0.1'

Answer 2

修复是将google url放在gradle中的存储库列表中的jcenter()上方.

这是问题所在:https://issuetracker.google.com/issues/80362794

Answer 3

在我的情况下:

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

解决了我的问题

• 在我的旧配置中只有"jcenter()"
• 第一行jcenter(),第二行google()不起作用