構建Android項目時出錯

Question

當我嘗試構建我的android項目時，它顯示一些gradle錯誤。錯誤如下，

Error:Could not find com.android.tools.build:gradle:2.2.3. 
Searched in the following locations: 
    https://repo1.maven.org/maven2/com/android/tools/build/gradle/2.2.3/gradle-2.2.3.pom 
    https://repo1.maven.org/maven2/com/android/tools/build/gradle/2.2.3/gradle-2.2.3.jar 
Required by: 
    D4D.libs:ViewPagerIndicator-Library:unspecified 

如果有人知道如何解決這個錯誤，請幫助我。

我的build.gradle

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

buildscript { 
    repositories { 
     jcenter() 
    } 

    dependencies { 

     classpath 'com.android.tools.build:gradle:2.2.3' 

     // 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

這是因爲構建過程是無法找到Maven倉庫的依賴。添加jcenter（）以及mavenCentral（）在您的項目級別build.gradle文件。

buildscript { 
    repositories { 
     mavenCentral() 
     jcenter() 
    } 
    dependencies { 
     classpath 'com.android.tools.build:gradle:2.2.0' 
    } 
} 

see this

Answer 2

根據這個答案https://stackoverflow.com/a/39654136/8284461，也許你需要在你的倉庫中添加mavenCentral()。在gradle這個會是這樣

buildscript { 
    repositories { 
     mavenCentral() 
     jcenter() 
    } 

    dependencies { 

     classpath 'com.android.tools.build:gradle:2.2.3' 

     // 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 
}