无法使用Android Studio 1.2和Gradle 1.2.2加载类OutputFileTask

这是我的gradle文件

apply plugin: 'com.android.library'
apply plugin: 'maven'
apply plugin: 'maven-publish'

android {
    compileSdkVersion 21
    buildToolsVersion "21.1.2"

    repositories {
        mavenCentral()
    }

    defaultConfig {
        minSdkVersion 9
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            consumerProguardFiles getDefaultProguardFile('proguard-android.txt'),'proguard-rules.pro'
        }
    }

    lintOptions {
        abortOnError false
        checkReleaseBuilds false
    }

    packagingOptions {
        exclude 'Meta-INF/services/javax.Annotation.processing.Processor'
        exclude 'Meta-INF/DEPENDENCIEs.txt'
        exclude 'Meta-INF/DEPENDENCIES'
        exclude 'Meta-INF/LICENSE.txt'
        exclude 'Meta-INF/LICENSE'
        exclude 'Meta-INF/NOTICE.txt'
        exclude 'Meta-INF/NOTICE'
        exclude 'Meta-INF/LGPL2.1'
    }
}


dependencies {
    compile 'com.android.support:support-v4:22.1.0'
    compile 'com.android.support:appcompat-v7:22.1.0'
}

task sourceJar(type: Jar) {
    classifier "source"
}



publishing {
    publications {

        repositories.maven {
            url repo
            credentials {
                username user
                password passwd
            }
        }

        maven(MavenPublication) {
            artifacts {
                groupId 'com.android'
                artifactId 'artefact-1'
                version '1'
                artifact artifactPath
            }
        }
    }

}

}

我认为可能还有另一个gradle api更改导致旧的东西不再工作.

如何解决问题再次构建我的项目？