提示ViewPager$1.class重复。求助！！！

buildgradle(project mleaf)代码：

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        jcenter()
        maven {
            url 'https://maven.google.com/'
            name 'Google'
        }
        google()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }

}

allprojects {
    repositories {
        jcenter()
        maven {
            url 'https://maven.google.com/'
            name 'Google'
        }
        google()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

buildgradle(module app)代码：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    buildToolsVersion '26.0.2'
    useLibrary 'org.apache.http.legacy'
    defaultConfig {
        applicationId "com.example.myq.mleaf"
        minSdkVersion 14
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        multiDexEnabled true
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:26.0.2'
    compile 'com.android.support:design:26.0.2'
    compile files('libs/commons-codec-1.9.jar')
    compile files('libs/android-support-v4.jar')
    compile project(':sliding_menu')
    compile files('libs/httpmime-4.1.jar')
    compile files('libs/android-async-http-1.4.9.jar')
    compile files('libs/android-async-http-1.4.4.jar')
    compile files('libs/xUtils-2.6.14.jar')
}

buildgradle(module slding_menu)代码：

buildscript {
    repositories {
        mavenCentral()
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'
    }
}
apply plugin: 'android-library'

dependencies {
    compile 'com.android.support:support-v4:13.0.0'
}

android {
    compileSdkVersion 26
    buildToolsVersion '26.0.2'

    defaultConfig {
        minSdkVersion 14
        targetSdkVersion 26


            multiDexEnabled true

    }

    sourceSets {
        main {
            java.srcDirs = ['src']
            resources.srcDirs = ['src']
            aidl.srcDirs = ['src']
            renderscript.srcDirs = ['src']
            res.srcDirs = ['res']
            assets.srcDirs = ['assets']

            manifest.srcFile 'AndroidManifest.xml'
        }
    }

}

错误提示：Duplicate zip entry [classes.jar:android/support/v4/view/ViewPager$1.class]

求各位大佬帮忙，谢谢！！！！

https://stackoverflow.com/questions/27347534/proguard-cant-read-android-support-v13-jarmeta-inf-manifest-mf-duplic