在androidstudio中构建apk时找不到Aapt_rules.txt

运行proguard来构建我的apk文件时,我收到以下错误:

Warning:Exception while processing task java.io.FileNotFoundException: C:\Users\Josh\Documents\AdscendUnityPlugin2.1.3\AdscendUnityPlugin2.1.3\HelloUnity\Export\HelloUnity\build\intermediates\proguard-rules\debug\aapt_rules.txt (The system cannot find the path specified)

我的gradle文件:

// GENERATED BY UNITY. REMOVE THIS COMMENT TO PREVENT OVERWRITING WHEN EXPORTING AGAIN
buildscript {
    repositories {
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.0'
    }
}

allprojects {
   repositories {
       jcenter()
      flatDir {
        dirs 'libs'
      }
   }
}

apply plugin: 'com.android.application'

repositories {

    maven { url "https://bitbucket.org/adscend/androidsdk/raw/master/" }
}


dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.adscendmedia.sdk:adscendmedia:2.1.26'
}

android {
    compileSdkVersion 25
    buildToolsVersion '25.0.0'

    defaultConfig {
        targetSdkVersion 25
    }

    lintOptions {
        abortOnError false
    }

    buildTypes {
        debug {
            jniDebuggable true
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-unity.txt'
        }
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-unity.txt'

        }
    }

}

我似乎无法找到文件夹'proguard-rules',这可能导致此错误？有任何想法吗？

我知道我在我的调试版本上运行proguard,我只是想让它在这一点上工作.

谢谢

在我的情况下,我的自定义proguard.pro是空白的.重建项目适合我.