Android Studio: Could not find com.android.tools.b

问题:

Recently I have updated my Android Studio to latest version from Latest Android Studio Canary Build: 2.0 Preview

After updating to the new version, my current working directory stop working at all. Every single time when I am trying to clean and build a project they will give me an error like this

Blockquote 'Error:Could not find com.android.tools.build:gradle:2.0.0-alpha2. Searched in the following locations: file:/Applications/Android Studio.app/Contents/gradle/m2repository/com/android/tools/build/gradle/2.0.0-alpha2/gradle-2.0.0-alpha2.pom file:/Applications/Android Studio.app/Contents/gradle/m2repository/com/android/tools/build/gradle/2.0.0-alpha2/gradle-2.0.0-alpha2.jar https://repo1.maven.org/maven2/com/android/tools/build/gradle/2.0.0-alpha2/gradle-2.0.0-alpha2.pom https://repo1.maven.org/maven2/com/android/tools/build/gradle/2.0.0-alpha2/gradle-2.0.0-alpha2.jar Required by: :android 3:unspecified'

Anyone have an idea how to solve this problem. Thanks in advance.

UPDATE: I am using a Mac machine and installation directory look like

回答1:

Apparently the build tools have been moved from maven to jcenter so you need to change the code from:

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.0.0-alpha2'
    }
}

to this

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.0.0-alpha2'
    }
}

More details on the changes:

Android Tools Project Site http://tools.android.com/recent

Android Developer Tools community https://plus.google.com/communities/114791428968349268860/stream/7f20992b-7d9a-4309-9d94-6fbe08f0ad6e

回答2:

In the main build.gradle file, add jcenter() as main repo, just like that :

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:1.5.0'

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

allprojects {
    repositories {
        jcenter()
    }
}

Remove other repositories or make sure jcenter is the first one.

回答3:

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.0'

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

repositories block should be in buildscript. 

回答4:

Check to see if gradle 2.0.0-alpha1 is available on your system. Look in your android/tools/build/gradle folder. In my case, despite the confusing message "This project is using a preview version of the Gradle plugin (2.0.0-alpha2) and a newer version is available (2.0.0-alpha2) You can update to 2.0.0-alpha2." the version in my folder was 2.0.0-alpha1, and changing my build.gradle to: classpath 'com.android.tools.build:gradle:2.0.0-alpha1' fixed my build problem.

回答5:

I removed the newest folder gradle-4.1-all in C:\Users\YOUR_USER_NAME\ .gradle\wrapper\dists\ and then I created a new project in Android Studio and the following message disappeared:

"Gradle sync failed: Could not find com.android.tools.build: Gradle: 3.0.0-beta6. "

回答6:

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.3'
        classpath 'com.google.gms:google-services:3.0.0'

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

allprojects {
    repositories {
        maven { url "https://maven.google.com" }
        maven { url "https://jitpack.io" }
        jcenter()
    }
}

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

回答7:

On my side travis build failed with error message "Could not find com.android.tools.build:gradle:3.0.1".

After addeing google() as additional repository the problem was gone.

buildscript {
    repositories {
        jcenter()
        google()

My local build did not fail because i had installed before "com.android.tools.build:gradle:3.0.1" with anddroid-sdk-manager

回答8:

I have tried something like

platfoms > android > cordova >lib > builders > Gradlebuilder.js

Downloaded zip and given path

var distributionUrl = process.env['CORDOVA_ANDROID_GRADLE_DISTRIBUTION_URL'] || 'file\:///C:/MyPC/Documents/softwares/gradle-2.14.1-all.zip';

and linking path is

allprojects {
    repositories {
        mavenLocal()

        google()
        jcenter()
         maven{url "http://jcenter.bintray.com"}
    }
}

It worked for me.

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