title: Failed to resolve : com.android.support:design:26.0.0
body: <p>I cannot include material design library in my project </p>
  
  <p><strong>This is my build.gradle file</strong></p>
  
  
  
  <pre class="lang-html prettyprint-override"><code>apply plugin: 'com.android.application'
  
  android {
      compileSdkVersion 26
      buildToolsVersion "25.0.2"
  
      defaultConfig {
          applicationId "com.example.abdelmagied.myapplication"
          minSdkVersion 15
          targetSdkVersion 26
          versionCode 1
          versionName "1.0"
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
  }
  
  dependencies {
      compile fileTree(dir: 'libs', include: ['*.jar'])
      testCompile 'junit:junit:4.12'
      compile 'com.android.support:appcompat-v7:26.0.0-alpha1'
      compile 'com.android.support:design:26.0.0'
  }
  </code></pre>
  
  <p><strong>Every time I Sync it gives me this error:</strong></p>
  
  <blockquote>
    <p>Failed To resolve:com.android.support:design:26.0.0</p>
  </blockquote>