Android Studio项目同步失败

Question

I attempted to import a project that Udacity's android course provided, but there were some issues. In the build.grade(app module) I changed compile to implementation and testCompile to testImplementation . The project synced successfully, but when I executed the project on the emulator it gave me the following errors.

Could not find com.android.tools.build:aapt2:3.3.1-5013011.
Searched in the following locations:
  - file:/C:/Users/root/AppData/Local/Android/Sdk/extras/m2repository/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011.pom
  - file:/C:/Users/root/AppData/Local/Android/Sdk/extras/m2repository/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011-windows.jar
  - file:/C:/Users/root/AppData/Local/Android/Sdk/extras/google/m2repository/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011.pom
  - file:/C:/Users/root/AppData/Local/Android/Sdk/extras/google/m2repository/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011-windows.jar
  - file:/C:/Users/root/AppData/Local/Android/Sdk/extras/android/m2repository/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011.pom
  - file:/C:/Users/root/AppData/Local/Android/Sdk/extras/android/m2repository/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011-windows.jar
  - https://jcenter.bintray.com/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011.pom
  - https://jcenter.bintray.com/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011-windows.jar
Required by:
project :app

I think the required libraries needed to build cannot be found, but I don't know how to solve this. I googled the problem, but I can't find a solution. My build.gradle file is this:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23

    defaultConfig {
        applicationId "com.example.android.miwok"
        minSdkVersion 15
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}


dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    testImplementation 'junit:junit:4.12'
    api 'com.android.support:appcompat-v7:23.3.0'
    api 'com.android.support:support-v4:23.3.0'
    api 'com.android.support:design:23.3.0'
}

build.grade(project) is:

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

buildscript {
    repositories {
        jcenter()
        google()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.3.1'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

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

Answer 1

Beginning with Android Studio 3.2, the source for AAPT2 (Android Asset Packaging Tool 2) is Google's Maven repository.
To use AAPT2, make sure that you have a google() dependency in your build.gradle file.

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

Answer 2

Check the official documentation .

The AAPT2 (Android Asset Packaging Tool) is a build tool that Android Studio and Android Gradle Plugin.
Android Gradle Plugin 3.0.0 and higher enable AAPT2 by default.

With Android Studio 3.2 to use AAPT2, make sure that you have a google() dependency in your build.gradle :

  buildscript {
      repositories {
          google() // here
          jcenter()
      }
      dependencies {
          classpath 'com.android.tools.build:gradle:3.2.0'
      }
  } allprojects {
      repositories {
          google() // and here
          jcenter()
  }