android - 错误 :null value in entry: mainDexListProguardOutputFile=null

Question

我在构建 gradle 时在 Android studio 中遇到此错误。

Error:null value in entry: mainDexListProguardOutputFile=null

build.gradle:

apply plugin: 'com.android.application'

android {

compileSdkVersion 24
buildToolsVersion '25.0.0'
defaultConfig {
    applicationId "xxx"
    minSdkVersion 15
    targetSdkVersion 24
    versionCode 14
    versionName '2.4'
}
buildTypes {
    release {

        debuggable false
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

    }
    debug {
        debuggable true
        minifyEnabled true
    }
}
productFlavors {
} 
}

repositories {
    mavenCentral()
}

dependencies {
    ---
}
apply plugin: 'com.google.gms.google-services'

clean build 没有工作，我该如何解决这个问题？

Answer 1

来不及回答我自己的问题:

delete .gradle folder from root directory then rebuild.