Gradle与“找不到可选库”同步失败

Question

Warning: Unable to find optional library: org.apache.http.legacy

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:1.3.0'
    }
}

allprojects {
    repositories {
        mavenCentral()
    }
}

apply plugin: 'android'

android {
    useLibrary  'org.apache.http.legacy'

    compileSdkVersion 23
    buildToolsVersion '23.0.2'
    defaultConfig {
        minSdkVersion 16
        targetSdkVersion 23
    }
    buildTypes {
        release {
        }
    }
    productFlavors {
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile 'com.android.support:support-v4:23.1.1'
    compile 'com.android.support:appcompat-v7:23.1.1'
}

从google文档：

要继续使用Apache HTTPAPI，必须首先在build.gradle文件中声明以下编译时依赖项：

android {
    useLibrary 'org.apache.http.legacy'
}

我尝试了这篇文章中提到的建议，但它们不起作用。与android Studio1.5和2预览结果相同。

将compilesdkversion和targetsdkversion更改为22。还有23.0.1、23.0.0、22.0.1版本的buildToolsVersion。

Answer 1

顶级build.gradle-/build.gradle

buildscript {
...
dependencies {
    classpath 'com.android.tools.build:gradle:1.3.1'
}
}

模块特定的build.gradle-/app/build.gradle

android {
compileSdkVersion 23
buildToolsVersion "23.0.0"
useLibrary 'org.apache.http.legacy'
...
}

将android/sdk/platforms/android-23/optional文件夹中的org.apache.http.legacy.jar添加到app/libs目录并同步项目