Android studio libgdx项目中的BaseGameUtils-找不到版本20.0.0的生成工具

梯度同步失败，出现以下消息：

failed find Build Tools revision 20.0.0

在Android studio中，我从sdk管理器安装了google play服务包。我在项目的根目录中创建了一个文件夹库，并在该文件夹中放置了BaseGameUtils。我修改了线路

include 'desktop', 'android', 'core', ':libraries:BaseGameUtils'

在gradle.settings文件中。 我还编辑了build.gradle文件，现在看起来如下：

buildscript {
        repositories {
            mavenCentral()
            maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
        }
        dependencies {
        classpath 'com.android.tools.build:gradle:1.2.3'
    }
}

allprojects {
    apply plugin: "eclipse"
    apply plugin: "idea"

    version = '1.0'
    ext {
       appName = "TapTapSort"
        gdxVersion = '1.6.5'
        roboVMVersion = '1.6.0'
        box2DLightsVersion = '1.4'
        ashleyVersion = '1.6.0'
        aiVersion = '1.5.0'
        gdxUtilsVersion = '0.11.0';
    }

    repositories {
        mavenCentral()
        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
        maven { url "https://oss.sonatype.org/content/repositories/releases/" }
    }
}

project(":desktop") {
    apply plugin: "java"


    dependencies {
        compile project(":core")
        compile "com.badlogicgames.gdx:gdx-backend-lwjgl:$gdxVersion"
        compile "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-desktop"
        compile "com.badlogicgames.gdx:gdx-box2d-platform:$gdxVersion:natives-desktop"
        compile "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-desktop"
    }
}

project(":android") {
    apply plugin: "android"

    configurations { natives }

    dependencies {
        compile project(":core")
        compile "com.badlogicgames.gdx:gdx-backend-android:$gdxVersion"
        natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-armeabi"
        natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-armeabi-v7a"
        natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-x86"
        compile "com.badlogicgames.gdx:gdx-box2d:$gdxVersion"
        natives "com.badlogicgames.gdx:gdx-box2d-platform:$gdxVersion:natives-armeabi"
        natives "com.badlogicgames.gdx:gdx-box2d-platform:$gdxVersion:natives-armeabi-v7a"
        natives "com.badlogicgames.gdx:gdx-box2d-platform:$gdxVersion:natives-x86"
        compile "com.badlogicgames.gdx:gdx-freetype:$gdxVersion"
        natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-armeabi"
        natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-armeabi-v7a"
        natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-x86"
        compile "com.google.android.gms:play-services:7.8.0+"
    }
}

project(":core") {
    apply plugin: "java"


    dependencies {
        compile "com.badlogicgames.gdx:gdx:$gdxVersion"
        compile "com.badlogicgames.gdx:gdx-box2d:$gdxVersion"
        compile "com.badlogicgames.gdx:gdx-freetype:$gdxVersion"
        compile "net.dermetfan.libgdx-utils:libgdx-utils:$gdxUtilsVersion"
        compile "net.dermetfan.libgdx-utils:libgdx-utils-box2d:$gdxUtilsVersion" // Box2D module
    }
}

project(":libraries:BaseGameUtils")

tasks.eclipse.doLast {
    delete ".project"
}

BaseGameUtils的build.gradle： 应用插件：“com.android.library”

buildscript {
    repositories {
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:1.3.0'
    }
}

dependencies {
    // Set defaults so that BaseGameUtils can be used outside of BasicSamples
    if (!hasProperty('appcompat_library_version')) {
        ext.appcompat_library_version = '20.0.+'
    }
    if (!hasProperty('support_library_version')) {
        ext.support_library_version = '20.0.+'
    }
    if (!hasProperty('gms_library_version')) {
        ext.gms_library_version = '7.8.0'
    }

    compile "com.android.support:appcompat-v7:${appcompat_library_version}"
    compile "com.android.support:support-v4:${support_library_version}"
    compile "com.google.android.gms:play-services-games:${gms_library_version}"
    compile "com.google.android.gms:play-services-plus:${gms_library_version}"
    compile "com.google.android.gms:play-services-appstate:${gms_library_version}"
}

android {
    // Set defaults so that BaseGameUtils can be used outside of BasicSamples
    if (!hasProperty('android_compile_version')) {
        ext.android_compile_version = 20
    }
    if (!hasProperty('android_version')) {
        ext.android_version = '20'
    }

    compileSdkVersion android_compile_version
    buildToolsVersion android_version
}

下面是已安装工具的屏幕截图：

---

gradle设置中的生成工具版本需要与您安装的版本匹配。出于某种原因，SDK管理器没有显示当前的构建工具版本，但我假设它是最新的23.0.0版本

在android目录中的build.gradle文件中，更改

buildToolsVersion "20.0.0"

到

或者（不确定这是否有效）：

编辑： 基于您的更新。我现在还不能确定这一点，但我认为BaseGameUtils希望您在项目根目录中的名为

ext

的块中定义

buildToolsVersion

和

compileSDKVersion

所以在你的根构建的顶端，你可以把

ext {
    compileSdkVersion = 23 //or whatever you have installed
    buildToolsVersion = "23.0.0"
}

在android目录下的build.gradle中，将这两行更改为返回到相同的

ext

块：

android {
    //...
    compileSdkVersion = ext.compileSdkVersion
    buildToolsVersion = ext.buildToolsVersion
    //...
}

---

不确定，但您可能需要将

ext.

替换为

rootProject.ext.

。还可以在BaseGameUtil的build.gradle中更改它。

已经配置好了。我修改了这篇文章并添加了BaseGameUtils的build.gradle，我认为问题可能在那里找到？我认为BaseGameUtils的gradle文件正在项目根目录的build.gradle中查找

ext

块。定义android buildToolsVersion和compileSDK版本的工具。请参见编辑。

ext {
    compileSdkVersion = 23 //or whatever you have installed
    buildToolsVersion = "23.0.0"
}

android {
    //...
    compileSdkVersion = ext.compileSdkVersion
    buildToolsVersion = ext.buildToolsVersion
    //...
}