无法删除Android Studio中的目录

Error:Execution Failed for task ':app:clean'.
> Unable to delete directory: /media/dev1/08782A6D782A5A281/workspace/gengold/GenGold/app/build/intermediates/exploded-aar/com.android.support/appcompat-v7/21.0.3/jars

这是我的build.gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 21
    buildToolsVersion "21.1.2"
    defaultConfig {
        applicationId "com.mobile.gengold"
        minSdkVersion 15
        targetSdkVersion 21
    }
    buildTypes {
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'),'proguard-rules.pro'
        }
    }
    productFlavors {
    }
}

dependencies {

    compile 'com.android.support:support-v4:21.0.2'
    compile 'com.android.support:appcompat-v7:21.0.3'
        /*compile 'com.google.android.gms:play-services-maps:6.5.+'*/
    compile 'com.google.android.gms:play-services:6.5.87'
    compile files('libs/jncryptor-1.2.0.jar')
}

我从该目录中删除了jar,但是它反复显示错误.此外,它再次创建目录.