Aapt_rules.txt not found when building apk in android studio

Question

When running proguard to build my apk file, I get the following error:

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)

My gradle file:

// 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'

        }
    }

}

I couldn't seem to find the folder 'proguard-rules' either, what could be causing this error? Any ideas?

I am aware i'm running proguard on my debug build, i'm just trying to get it to work at this point.

Thank you

Answer 1

In my case my custom proguard.pro is blank. Rebuild project works for me.