我的Android Studio Gradle无法从Maven Central获取插件

Question

我试图将smoothprogressbar库添加到我的android项目中

我将这些行添加到build.gradle中

dependencies {
    // of course, do not write x.x.x but the version number
    compile 'com.github.castorflex.smoothprogressbar:library:0.5.2'
}

当我同步gradle时，它的说法是找不到：com.github.castorflex.smoothprogressbar：library：0.5.1

我试图将mavenCentral（）和maven url放入build.gradle和我在stackoverflow中发现的其他解决方案中，但似乎没有任何效果。

编辑：

这是我完整的gradle文件

apply plugin: 'com.android.application'


repositories {
    mavenCentral()
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    //compile 'com.android.support:cardview-v7:21.+'
    compile('com.google.http-client:google-http-client-android:1.18.0-rc') {
        exclude(group: 'com.google.android', module: 'android')
        exclude(group: 'org.apache.httpcomponents', module: 'httpclient')
    }
    // You must install or update the Support Repository through the SDK manager to use this dependency.
    // You must install or update the Support Repository through the SDK manager to use this dependency.
    compile project(path: ':backend', configuration: 'android-endpoints')
    // You must install or update the Support Repository through the SDK manager to use this dependency.
    // You must install or update the Support Repository through the SDK manager to use this dependency.
    compile project(':library')
    // You must install or update the Support Repository through the SDK manager to use this dependency.
    compile 'com.android.support:support-v4:19.+'
    compile 'com.google.android.gms:play-services:4.4.52'
    // You must install or update the Support Repository through the SDK manager to use this dependency.
    compile 'com.android.support:support-v13:19.+'
    compile 'com.google.code.gson:gson:2.+'
    compile 'com.github.castorflex.smoothprogressbar:library:0.5.2'
}

android {
    signingConfigs {
        ...
    }
    compileSdkVersion 19
    buildToolsVersion '20.0.0'
    defaultConfig {
        applicationId ...
        minSdkVersion 15
        targetSdkVersion 19
        versionCode 1
        versionName '1.0'
    }
    buildTypes {
        release {
            runProguard false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            signingConfig signingConfigs.config
        }
    }
    dexOptions {
        preDexLibraries = false
    }
    productFlavors {
    }
}

Answer 1

为我工作。 您应该发布更多build.gradle脚本（特别是尝试将mavenCentral（）放入脚本中的方式），但是要点是您需要在脚本中的android {}块之外添加以下内容（并且除了buildscript {}块中的类似代码之外）：

buildscript {
    // ...
}

repositories {
    mavenCentral()
}

dependencies {
    compile 'com.github.castorflex.smoothprogressbar:library:0.5.2'
}

android {
    // ...
}

然后与Gradle重新同步您的项目。

Answer 2

使用此方法：

compile 'com.github.castorflex.smoothprogressbar:library:0.5.2@aar'