Sou capaz de criar compilações para o meu aplicativo Android, mas quando ligo o programa, recebo vários avisos e a compilação falha. Os avisos são como os abaixo:

Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.HttpRequest
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.HttpEntity
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.params.HttpParams
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.conn.ClientConnectionManager
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.client.methods.HttpUriRequest
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.HttpResponse
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.client.methods.HttpUriRequest
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.protocol.HttpContext
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.HttpResponse
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.HttpHost
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.HttpRequest
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.HttpResponse
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.HttpHost
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.HttpRequest
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.protocol.HttpContext
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.HttpResponse
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.client.methods.HttpUriRequest
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.client.ResponseHandler
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.client.methods.HttpUriRequest
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.client.ResponseHandler
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.protocol.HttpContext
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.HttpHost
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.HttpRequest
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.client.ResponseHandler
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.HttpHost
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.HttpRequest
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.client.ResponseHandler
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.protocol.HttpContext
Warning: library class android.net.http.AndroidHttpClient depends on program class org.apache.http.entity.AbstractHttpEntity

Está reclamando de bibliotecas que foram usadas no meu projeto. Minhas configurações estão abaixo:

buildTypes {
    release {
        runProguard false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
        proguardFile file('proguard-rules.txt')
        signingConfig signingConfigs.release
    }
}

Dentro do meuproguard-rules.txt Eu tenho o seguinte:

-libraryjars libs

Todas as minhas bibliotecas são armazenadas na pasta libs. Há mais alguma coisa que estou fazendo de errado?