Android DeskClock没有编译

Question

我正在尝试使用Adnroids stock DeskClock应用：https://android.googlesource.com/platform/packages/apps/DeskClock/

但是，在更新build.gradle：

之后

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

allprojects {
    repositories {
        jcenter()
    }
}


apply plugin: "com.android.application"

android {
    sourceSets {
        main {
            manifest.srcFile "AndroidManifest.xml"
            java.srcDir "src"
            res.srcDir "res"
            assets.srcDir "assets"
        }
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_7
        targetCompatibility JavaVersion.VERSION_1_7
    }

    dependencies {
        compile (project(":android-opt-datetimepicker")) {
            exclude module: "support-v4"
        }
        compile project(":messageformat")
        compile project(":support-design")
        compile project(":support-v7-appcompat")
        compile project(":support-v7-gridlayout")
        compile project(":support-v7-recyclerview")
        compile project(":support-v13")
    }
}

项目参考的错误继续：

Error:(50, 0) Project with path ':android-opt-datetimepicker' could not be found in root project 'DeskClock'.

如何将其重新配置才能工作？