title: Android Appcompat-v7 Error
body: <p>I am using android studio 2.3.1, In android build.gradle  </p>
  
  <blockquote>
    <p>compile 'com.android.support:appcompat-v7:23.4.0'</p>
  </blockquote>
  
  <p>has error </p>
  
  <blockquote>
    <p>All com.android.support libraries must use the exact same version specification (mixing versions can lead to runtime crashes). Found versions 24.0.0, 23.4.0. Examples include <code>com.android.support:support-v4:24.0.0</code> and <code>com.android.support:animated-vector-drawable:23.4.0</code></p>
  </blockquote>
  
  <p>This is my build.gradle</p>
  
  <pre><code>apply plugin: 'com.android.application'   
  
  android {
  compileSdkVersion 23
  buildToolsVersion '25.0.0'
  useLibrary 'org.apache.http.legacy'
  defaultConfig {
      applicationId "com.wsolus.chathuranga.simplifya"
      minSdkVersion 16
      targetSdkVersion 23
      versionCode 22
      versionName "2.0.1"
      testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
  }
  buildTypes {
      release {
          minifyEnabled false
          proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
      }
  }
  packagingOptions {
      exclude 'META-INF/DEPENDENCIES.txt'
      exclude 'META-INF/LICENSE.txt'
      exclude 'META-INF/NOTICE.txt'
      exclude 'META-INF/NOTICE'
      exclude 'META-INF/LICENSE'
      exclude 'META-INF/DEPENDENCIES'
      exclude 'META-INF/notice.txt'
      exclude 'META-INF/license.txt'
      exclude 'META-INF/dependencies.txt'
      exclude 'META-INF/LGPL2.1'
  } } dependencies {
  compile fileTree(include: ['*.jar'], dir: 'libs')
  androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
      exclude group: 'com.android.support', module: 'support-annotations'
  })
    compile('org.apache.httpcomponents:httpmime:4.3') {
      exclude module: "httpclient"
  }
    compile 'com.android.support:appcompat-v7:23.4.0'
    compile 'com.android.support:design:23.4.0'
    compile 'com.android.support:support-v4:23.4.0'
  
  }
  </code></pre>
  
  <p>please help me 
  Thanks</p>
  
  <p>This is a screen shot of the gradle:</p>
  
  <p><img src="https://i.stack.imgur.com/rjHG1.png" alt="This is a screen shot of the gradle"></p>