Could not find com.android.tools.build:aapt2:3.2.0

问题

AndroidStudio3.2 Canary14 fails clean-and-rebuild with the following error

Could not find com.android.tools.build:aapt2:3.2.0-alpha14-4748712.
Searched in the following locations:
    file:~/Library/Android/sdk/extras/m2repository/com/android/tools/build/aapt2/3.2.0-alpha14-4748712/aapt2-3.2.0-alpha14-4748712.pom
    file:~/Library/Android/sdk/extras/m2repository/com/android/tools/build/aapt2/3.2.0-alpha14-4748712/aapt2-3.2.0-alpha14-4748712-osx.jar
    file:~/Library/Android/sdk/extras/google/m2repository/com/android/tools/build/aapt2/3.2.0-alpha14-4748712/aapt2-3.2.0-alpha14-4748712.pom
    file:~/Library/Android/sdk/extras/google/m2repository/com/android/tools/build/aapt2/3.2.0-alpha14-4748712/aapt2-3.2.0-alpha14-4748712-osx.jar
    file:~/Library/Android/sdk/extras/android/m2repository/com/android/tools/build/aapt2/3.2.0-alpha14-4748712/aapt2-3.2.0-alpha14-4748712.pom
    file:~/Library/Android/sdk/extras/android/m2repository/com/android/tools/build/aapt2/3.2.0-alpha14-4748712/aapt2-3.2.0-alpha14-4748712-osx.jar
    https://jcenter.bintray.com/com/android/tools/build/aapt2/3.2.0-alpha14-4748712/aapt2-3.2.0-alpha14-4748712.pom
    https://jcenter.bintray.com/com/android/tools/build/aapt2/3.2.0-alpha14-4748712/aapt2-3.2.0-alpha14-4748712-osx.jar
Required by:
    project :app

回答1:

Beginning with Android Studio 3.2 Canary 11, 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, as shown here:

buildscript {
  repositories {
      google() // here
      jcenter()
  }
  dependencies {
      classpath 'com.android.tools.build:gradle:3.2.0-alpha12'
  }
} 
allprojects {
  repositories {
      google() // and here
      jcenter()
  }
}

The new version of AAPT2 fixes many issues, including improved handling of non-ASCII characters on Windows.

Adding the repositories in the buildscript is not sufficient, you need to add it also in allprojects.

Source: https://developer.android.com/studio/releases/#aapt2_gmaven

回答2:

Are you opening a very old project? If so, make sure your app's build.gradle has:

apply plugin: 'com.android.application'

repositories {
    google()
    jcenter()
} 

(That solved it for me anyways)

回答3:

Just add google() on your buidscript and allprojects then rebuild the project.

buildscript {
    repositories {
        google() // `enter code here`
    }
 }

allprojects {
    repositories {
        google() // `<-- here`
    }
}

回答4:

I resolve this issue by changing the "distributionUrl" in android/gradle/gradle-wrapper.properties.

The default value was https\://services.gradle.org/distributions/gradle-4.10.2-all.zip and I changed it to https\://services.gradle.org/distributions/gradle-5.4.1-all.zip and the error is gone.

回答5:

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    repositories {
        jcenter()
        google()  //导入旧版本项目时，一般来说该处依赖会在更改classpath中gradle版本是自动添加
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.3.0'
        classpath 'com.google.gms:google-services:3.0.0'
    }
}

allprojects {
    repositories {
       /*
        解决报错：Could not find com.android.tools.build:aapt2:3.3.0-5013011.
        Beginning with Android Studio 3.2 Canary 11, 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, as shown here:
        */
        google() //但是此处不会，需要自主添加
        jcenter()
    }
}

回答6:

The solution is a four-step process, 1. change the classpath in build.gradle to the desired version. 2. Sync Now 3. After it downloads all the files, you can delete the new and add the previous version in Gradle. 4. Sync Now

Follow the link below,

https://www.getsuyodev.com/could-not-resolve-com-android-tools-buildaapt23-5-0-5435860/

回答7:

Update your app's build.grade file dependency with the updated version of grade

dependencies {    
  classpath 'com.android.tools.build:gradle:3.5.3'   
}

Follow android studio suggestion of the version to update to. after your grade classpath update and re-sync your app.

After all this restart your android studio.

回答8:

if google() not fixied then File -> Setting -> Build, Execution, Deployment -> Gradle

Then Uncheck Ofline Work, Done.

来源：https://stackoverflow.com/questions/50279792/could-not-find-com-android-tools-buildaapt23-2-0