问在Gradle上构建Android项目时找不到名为“默认”的配置怎么办？

Could not fetch model of type 'IdeaProject' using Gradle installation 'D:\gradle-1.7'.
A problem occurred configuring root project 'HealthCity'.
A problem occurred configuring root project 'HealthCity'.
Failed to notify project evaluation listener.
Configuration with name 'default' not found.

include ':ActionBarSherlock',':FacebookSDK',':library',':NineOldAndroids',':google-play-services_lib',':viewflow'

project(':ActionBarSherlock').projectDir = new File('C:/Users/Ankit/workspace/workspace-client-gemoro-2/ActionBarSherlock')
project(':FacebookSDK').projectDir = new File('C:/Users/Ankit/workspace/workspace-client-gemoro-2/FacebookSDK')
project(':library').projectDir = new File('C:/Users/Ankit/workspace/workspace-client-gemoro-2/library')
project(':NineOldAndroids').projectDir = new File('C:/Users/Ankit/workspace/workspace-client-gemoro-2/NineOldAndroids')
project(':google-play-services_lib').projectDir = new File('C:/Users/Ankit/workspace/workspace-client-gemoro-2/google-play-services_lib')
project(':viewflow').projectDir = new File('C:/Users/Ankit/workspace/workspace-client-gemoro-2/viewflow')

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.5+'
    }
}
apply plugin: 'android'

dependencies {
    compile fileTree(dir: 'libs', include: '*.jar')
    compile project(':ActionBarSherlock')
    compile project(':FacebookSDK')
    compile project(':library')
    compile project(':NineOldAndroids')
    compile project(':google-play-services_lib')
    compile project(':viewflow')
}

android {
    compileSdkVersion 16
    buildToolsVersion "17.0.0"

    defaultConfig {
        minSdkVersion 8
        targetSdkVersion 16
    }

    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = ['src']
            resources.srcDirs = ['src']
            aidl.srcDirs = ['src']
            renderscript.srcDirs = ['src']
            res.srcDirs = ['res']
            assets.srcDirs = ['assets']
        }

        instrumentTest.setRoot('tests')
    }
}