Android Studio Build（版本1.2.1.1）和Gradle（版本1.2.3）出错

Question

自升级到AS 1.2.x后，我无法构建我的项目。

每次构建（或清理或无效缓存/重新启动）时，都会收到以下错误消息：

我的gradle构建文件如下：

// 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:1.2.+'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
    }
}


apply plugin: 'com.android.application'

android
        {
    signingConfigs {
        config {            keyAlias 'ScoularAndroidKey'
            keyPassword 'password'
            storeFile file('C:/Users/bschmiedeler/.AndroidStudio/scoularkeystore.jks')
            storePassword 'password'
        }
    }
    name="Scoular"
    compileSdkVersion 21
    buildToolsVersion "21.1.2"
    defaultConfig {
        applicationId "com.scoular.scoular"
        minSdkVersion 15
        targetSdkVersion 21
        versionCode 1
        versionName "1.0.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            signingConfig signingConfigs.config
        }
        debug{
            debuggable true
        }
    }
}
dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile files('libs/commons-lang-2.3.jar')
    compile 'com.android.support:appcompat-v7:21.0.3'
    compile 'com.android.support:support-v4:21.0.3'
    compile 'com.google.android.gms:play-services:6.5.87'
    compile files('src/main/assets/library-1.0.10.jar')
}

非常感谢任何帮助。