Android 错误：项目之间的循环引用

我正在将一个Eclipse项目导入Android Studio。但它会出现如下错误。如何解决此类错误

Error:Circular reference between projects: :app -> :app 

下面是settings.gradle文件

include ':app'

apply plugin: 'com.android.application'

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

android {
    buildToolsVersion "23.0.1"
    compileSdkVersion 23
    defaultConfig {
        targetSdkVersion 22
    }
    productFlavors {
    }
    sourceSets {
        main {
            manifest.srcFile 'app/src/main/AndroidManifest.xml'
        }
    }
}
dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
}

这是build.gradle文件

include ':app'

apply plugin: 'com.android.application'

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

android {
    buildToolsVersion "23.0.1"
    compileSdkVersion 23
    defaultConfig {
        targetSdkVersion 22
    }
    productFlavors {
    }
    sourceSets {
        main {
            manifest.srcFile 'app/src/main/AndroidManifest.xml'
        }
    }
}
dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
}

Sol1:相同名称（：app）将不会添加到Android Studio中

解决方案2：如果：app名称不在项目中， 创建新项目并再次导入，它将正常工作

sol3:在settings.gradle文件中 包括“：应用程序“，”：核心” 像这样添加